Из a) past simple b) past continuous c) past perfect d) past perfect continuous 1. the workers (to be) on a strike for three weeks when the agreement on pay (to be reached). 2. when she got the results of her medical tests, she realised that she (to be feeling ) ill since she (to be) on holiday. 3. the door was unlocked. she (to wonder) who (leave) the door open. 4. he (to play) football when the ball (to hit) his head. 5. he (to drive) to work for half an hour when suddenly his car (to break) down. 6. when he arrived at the office he (to discover) that he (to leave) all the necessary papers at home. 7. susan (to type) some letters when the boss. (to ask) her into his office. 8. she looked tired. she (to type) letters all morning. 9. yesterday afternoon it (still to rain) when i (to get) home. 10. he (to clean) the car when the phone rang, so he (not to answer) it. 11. when i (to be) little, my mother (to use) to feed me. 12. jane's clothes were wet. she (to wash) her dog. 13. jerry (to be) nervous, for he (never to flow) in an aeroplane before. 14. i (never to like) going to the cinema on my own when i was a teenager. 15. kate (to dance), but when she saw a newcomer she (to stop).

1. The workers (had been) on a strike for three weeks when the agreement on pay (was reached).
2. When she got the results of her medical tests, she realised that she (had been feeling ) ill since she (was) on holiday.
3. The door was unlocked. She (wondered) who (had left) the door open.
4. He (was playing) football when the ball (hit) his head.
5. He (had been driving) to work for half an hour when suddenly his car (broke) down.
6. When he arrived at the office he (discovered) that he (had left) all the necessary papers at home.
7. Susan (was typing) some letters when the boss ( asked) her into his office.
8. She looked tired. She (had been typing) letters all morning.
9. Yesterday afternoon it (was still raining) when I (got) home.
10. He (was cleaning) the car when the phone rang, so he (did not answer) it.
11. When I (was) little, my mother (used) to feed me.
12. Jane's clothes were wet. She (had been washing) her dog.
13. Jerry (was) nervous, for he (had never flown) in an aeroplane before.
14. I (never liked) going to the cinema on my own when I was a teenager.
15. Kate (was dancing), but when she saw a newcomer she (stopped).

1. the workers (to be) on a strike for three weeks when the agreement on pay (to be reached).

Answer: The correct answer is past perfect continuous - had been.

Explanation: The sentence is talking about an action that started in the past and continued for a period of time. The workers were on strike for three weeks, which indicates a continuous action in the past. Therefore, we use the past perfect continuous tense to show that the strike had started before the agreement on pay was reached.

Step-by-step solution:
- Use the past perfect continuous tense (had been) to show the duration of the action (the strike).
- Use the simple past tense (to be) to indicate that the agreement on pay was reached.

Revised sentence: The workers had been on a strike for three weeks when the agreement on pay was reached.

2. when she got the results of her medical tests, she realised that she (to be feeling) ill since she (to be) on holiday.

Answer: The correct answer is past perfect - had been feeling, had been.

Explanation: The sentence is talking about a state or condition that started in the past and continued up until a specific point in time (when she got the results of her medical tests). Therefore, we use the past perfect tense to indicate that she had been feeling ill, and the past continuous tense to show that she had been on holiday.

Step-by-step solution:
- Use the past perfect tense (had been feeling) to indicate the duration of the feeling ill.
- Use the past perfect tense (had been) to show the duration of being on holiday.

Revised sentence: When she got the results of her medical tests, she realized that she had been feeling ill since she had been on holiday.

3. the door was unlocked. she (to wonder) who (leave) the door open.

Answer: The correct answer is past perfect - had wondered, had left.

Explanation: The sentence is talking about an action that took place before the door was found unlocked. Therefore, we use the past perfect tense to indicate that she had wondered before finding the door unlocked, and the simple past tense to show that someone had left the door open.

Step-by-step solution:
- Use the past perfect tense (had wondered) to indicate the action that happened before discovering the unlocked door.
- Use the past simple tense (left) to show the action of leaving the door open.

Revised sentence: The door was unlocked. She had wondered who had left the door open.

4. he (to play) football when the ball (to hit) his head.

Answer: The correct answer is past continuous - was playing, hit.

Explanation: The sentence is talking about an ongoing action in the past (playing football) being interrupted by another action (the ball hitting his head). Therefore, we use the past continuous tense to show the ongoing action and the simple past tense to show the interruption.

Step-by-step solution:
- Use the past continuous tense (was playing) to indicate the ongoing action of playing football.
- Use the simple past tense (hit) to show the action of the ball hitting his head.

Revised sentence: He was playing football when the ball hit his head.

5. he (to drive) to work for half an hour when suddenly his car (to break) down.

Answer: The correct answer is past perfect continuous - had been driving, broke.

Explanation: The sentence is talking about an action that had been in progress (driving to work) before another action (the car breaking down) happened suddenly. Therefore, we use the past perfect continuous tense to show the action that had been happening, and the simple past tense to show the sudden action.

Step-by-step solution:
- Use the past perfect continuous tense (had been driving) to indicate the action that had been happening before the car broke down.
- Use the simple past tense (broke) to show the sudden action of the car breaking down.

Revised sentence: He had been driving to work for half an hour when suddenly his car broke down.

6. when he arrived at the office he (to discover) that he (to leave) all the necessary papers at home.

Answer: The correct answer is past perfect - had discovered, had left.

Explanation: The sentence is talking about an action that occurred before another action. When he arrived at the office, he discovered something that had happened before. Therefore, we use the past perfect tense to show the action that occurred before arriving at the office.

Step-by-step solution:
- Use the past perfect tense (had discovered) to indicate the action that happened before arriving at the office.
- Use the past perfect tense (had left) to show the action of leaving all the necessary papers at home.

Revised sentence: When he arrived at the office, he had discovered that he had left all the necessary papers at home.

7. susan (to type) some letters when the boss. (to ask) her into his office.

Answer: The correct answer is past continuous - was typing, asked.

Explanation: The sentence is talking about an ongoing action in the past (typing some letters) being interrupted by another action (the boss asking her into his office). Therefore, we use the past continuous tense to show the ongoing action and the simple past tense to show the interruption.

Step-by-step solution:
- Use the past continuous tense (was typing) to indicate the ongoing action of Susan typing some letters.
- Use the simple past tense (asked) to show the action of the boss asking her into his office.

Revised sentence: Susan was typing some letters when the boss asked her into his office.

8. she looked tired. she (to type) letters all morning.

Answer: The correct answer is past perfect - had been typing.

Explanation: The sentence is talking about a state or condition that started in the past and continued up until a specific point in time (she looked tired). Therefore, we use the past perfect tense to indicate the action of typing letters that had been happening.

Step-by-step solution:
- Use the past perfect tense (had been typing) to indicate the duration of typing letters.

Revised sentence: She looked tired. She had been typing letters all morning.

9. yesterday afternoon it (still to rain) when i (to get) home.

Answer: The correct answer is past perfect continuous - had still been raining, got.

Explanation: The sentence is talking about an ongoing action (raining) that was still happening at a specific point in time (yesterday afternoon) before another action (getting home) happened. Therefore, we use the past perfect continuous tense to show the ongoing action and the simple past tense to show the action of getting home.

Step-by-step solution:
- Use the past perfect continuous tense (had still been raining) to indicate the ongoing action of raining that had been happening before yesterday afternoon.
- Use the simple past tense (got) to show the action of getting home.

Revised sentence: Yesterday afternoon it had still been raining when I got home.

10. he (to clean) the car when the phone rang, so he (not to answer) it.

Answer: The correct answer is past continuous - was cleaning, did not answer.

Explanation: The sentence is talking about an ongoing action in the past (cleaning the car) being interrupted by another action (the phone ringing). Therefore, we use the past continuous tense to show the ongoing action and the simple past tense to show the action of not answering the phone.

Step-by-step solution:
- Use the past continuous tense (was cleaning) to indicate the ongoing action of cleaning the car.
- Use the simple past tense (did not answer) to show the action of not answering the phone.

Revised sentence: He was cleaning the car when the phone rang, so he did not answer it.

11. when i (to be) little, my mother (to use) to feed me.

Answer: The correct answer is past simple - was, used to.

Explanation: The sentence is talking about a repeated action or habit in the past (mother feeding me) at a specific point (when I was little). Therefore, we use the past simple tense to show the action of being little and the use of "used to" to indicate a past habitual action.

Step-by-step solution:
- Use the past simple tense (was) to indicate the past action of being little.
- Use "used to" to indicate the habitual action of the mother feeding me.

Revised sentence: When I was little, my mother used to feed me.

12. jane's clothes were wet. she (to wash) her dog.

Answer: The correct answer is past continuous - was washing.

Explanation: The sentence is talking about an ongoing action in the past (washing her dog) that explains the state of Jane's clothes being wet. Therefore, we use the past continuous tense to show the ongoing action.

Step-by-step solution:
- Use the past continuous tense (was washing) to indicate the ongoing action of washing her dog.

Revised sentence: Jane's clothes were wet. She was washing her dog.

13. jerry (to be) nervous, for he (never to fly) in an aeroplane before.

Answer: The correct answer is past simple - was, had never flown.

Explanation: The sentence is talking about a state or condition in the past (Jerry being nervous) and a past action that occurred before that state (never flying in an airplane). Therefore, we use the past simple tense to show the state or condition and the past perfect tense to show the past action.

Step-by-step solution:
- Use the past simple tense (was) to indicate the state of Jerry being nervous.
- Use the past perfect tense (had never flown) to show the past action of never flying in an airplane.

Revised sentence: Jerry was nervous, for he had never flown in an airplane before.

14. i (never to like) going to the cinema on my own when i was a teenager.

Answer: The correct answer is past simple - never liked.

Explanation: The sentence is talking about a past action (not liking going to the cinema) that occurred repeatedly, or as a habit, during a specific period (when I was a teenager). Therefore, we use the past simple tense to show the habit of not liking going to the cinema.

Step-by-step solution:
- Use the past simple tense (never liked) to indicate the past action of not liking going to the cinema.

Revised sentence: I never liked going to the cinema on my own when I was a teenager.

15. kate (to dance), but when she saw a newcomer she (to stop).

Answer: The correct answer is past simple - danced, stopped.

Explanation: The sentence is talking about an action in the past (Kate dancing) that was interrupted by another action (seeing a newcomer), resulting in the cessation of the first action. Therefore, we use the past simple tense to show the action of dancing and the simple past tense to show the action of stopping.

Step-by-step solution:
- Use the past simple tense (danced) to indicate the action of Kate dancing.
- Use the simple past tense (stopped) to show the action of stopping when she saw a newcomer.

Revised sentence: Kate danced, but when she saw a newcomer, she stopped.