Put. the. verbs in brackets into the " present perfect" or "past simple" . 1.kevin hes lost ( lose) his key. he ( leave) it on the bus yeserday. 2. i ( not/ play) tennis since i was at school but i ( go) there on their honeymoon in 1967. 4.a: not/ choose ) your old car yet? b: yes, i ( buy) one yesterday. 5.a: / sell) your old car yet? b: yes, my cousin (give) me £500 for it last week. 6.i think our teacher (forget) about the test! he (not/ say) anything about it in the last lesson! 7.sarah (break) her leg. she (fall) off a horse last week. 8. we (sell) our house. some people (see) it last month and (buy) it. 9. i (finish) decorating my room. i (paint) it last week and i (put up) the new curtains last night. 10.they (lose) their cat. it (run) away last week. 11.peter (pass) his driving test. he (take) it last friday. 12. we (know) kate since last year. we (meet) her at a party. 13.i (never/ be) to australia. i (want) to go last summer but i (can/ not) . 14.i (not/ be) out since we (move) to our new house. 15. tom (see) this film twice. the last time he (see) it (be) a week ago.

1.Kevin has lost  his key. He ( left) it on the bus yeserday. 2. I ( have not/ played) tennis since I was at school but I ( went) there on their honeymoon in 1967.
4.A: ..Have...you( not/ chosen ) your old car yet?
B: Yes, I ( bought) one yesterday.
5.A: ...Have...you(not/ soldl) your old car yet?
B: Yes, my cousin (gave) me £500 for it last week.
6.I think our teacher (has forgotten) about the test! He (did not/ say) anything about it in the last lesson!
7. Sarah (has broken) her leg. She (fell) off a horse last week.
8. We (have soldl) our house. Some people (saw) it last month and (bought) it.
9. I (have finished) decorating my room. I (painted) it last week and I (put up) the new curtains last night.
10. They (have lost) their cat. It (ran) away last week.
11. Peter (has passed) his driving test. He (took) it last Friday.
12. We (have known) Kate since last year. We (met) her at a party.
13.I (have never/ been) to Australia. I (wanted) to go last summer but I (could not) .
14.I (have not/ been) out since we (moved) to our new house.
15. Tom (has seen) this film twice. The last time he (saw) it (was) a week ago. 

1. Kevin has lost (lose) his key. He left (leave) it on the bus yesterday.
Explanation: We use the present perfect tense to talk about a past action that has a connection to the present. Kevin lost his key in the past, but the consequence of losing it (not having the key) is still relevant in the present. He left it on the bus yesterday, showing a specific point in the past.

2. I have not played (not/play) tennis since I was at school, but I went (go) there on their honeymoon in 1967.
Explanation: We use the present perfect tense to talk about an action that started in the past and continues to the present. Since I was at school is a specific point in the past, and the action of playing tennis started in the past and continues to the present. However, in the second part of the sentence, we use the past simple tense because it refers to a specific point in the past (their honeymoon in 1967).

4. A: Have you not chosen (not/choose) your old car yet?
B: Yes, I bought (buy) one yesterday.
Explanation: In the question, we use the present perfect tense because it asks about an action that started in the past (choosing the car) and continues to the present. In the answer, we use the past simple tense because buying the car happened at a specific point in the past (yesterday).

5. A: Have you sold (sell) your old car yet?
B: Yes, my cousin gave (give) me £500 for it last week.
Explanation: In the question, we use the present perfect tense because it asks about an action that started in the past (selling the car) and continues to the present. In the answer, we use the past simple tense because giving the money happened at a specific point in the past (last week).

6. I think our teacher has forgotten (forget) about the test! He has not said (not/say) anything about it in the last lesson!
Explanation: We use the present perfect tense to talk about an action that started in the past (forgetting about the test) and continues to the present. The teacher has not said anything in the last lesson refers to a specific point in the past.

7. Sarah broke (break) her leg. She fell (fall) off a horse last week.
Explanation: Both actions happened at specific points in the past, so we use the past simple tense for both break and fall.

8. We have sold (sell) our house. Some people saw (see) it last month and bought (buy) it.
Explanation: We use the present perfect tense to talk about an action that started in the past (selling the house) and continues to the present. Seeing the house and buying it happened at specific points in the past.

9. I have finished (finish) decorating my room. I painted (paint) it last week and I put up (put up) the new curtains last night.
Explanation: We use the present perfect tense to talk about an action that started in the past (decorating the room) and continues to the present. Painting the room and putting up the curtains happened at specific points in the past.

10. They have lost (lose) their cat. It ran (run) away last week.
Explanation: We use the present perfect tense to talk about an action that started in the past (losing the cat) and continues to the present. Running away is a specific action that happened in the past.

11. Peter passed (pass) his driving test. He took (take) it last Friday.
Explanation: Both actions happened at specific points in the past, so we use the past simple tense for both pass and take.

12. We have known (know) Kate since last year. We met (meet) her at a party.
Explanation: We use the present perfect tense to talk about an action that started in the past (knowing Kate) and continues to the present. Meeting her at a party happened at a specific point in the past.

13. I have never been (never/be) to Australia. I wanted (want) to go last summer but I could not (not) .
Explanation: We use the present perfect tense to talk about an action that started in the past (visiting Australia) and continues to the present. Wanting to go and not being able to go happened at specific points in the past.

14. I have not been (not/be) out since we moved (move) to our new house.
Explanation: We use the present perfect tense to talk about an action that started in the past (being out) and continues to the present. Moving to the new house is a specific point in the past.

15. Tom has seen (see) this film twice. The last time he saw (see) it was (be) a week ago.
Explanation: We use the present perfect tense to talk about an action that started in the past (watching the film) and continues to the present. The last time he saw the film is a specific point in the past, so we use the past simple tense for both saw and was.