1. It … all summer, so the grass was completely dead. a. didn't rain
b. wasn’t rain
c. hadn’t rained
d. don’t rained
2. I opened my handbag to find that I … my credit card.
a. had forgotten
b. was forgetting
c. forgot
d. forget
3. I went to the library, then I … some milk and went home.
a. had bought
b. had buy
c. bought
d. buy
4. Mary … a lot of mistakes in her test.
a. have make
b. has make
c. have made
d. has made
5. What … at school yesterday?

a. did you do
b. have you done
c. did you
d. have you do
6. … to many countries of the world?
a. Was Andrea
b. Has Andrea been
c. Have Andrea been
d. Has Andrea be
7. When … this wonderful hat?
a. did you buy
b. did you bought
c. have you bought
d. have you buy
8. He looks tired. He ... all night.
a. have been working
b. has been working
c. have been worked
9. He … this report since afternoon.
a. has been reading
b. has bean reading
c. was been reading

1. It didn't rain all summer, so the grass was completely dead.
- The correct answer is a. didn't rain. "Didn't" is the past simple form of the verb "do" used in negative sentences to indicate an action that did not happen in the past. In this case, it means that there was no rain during the entire summer.

2. I opened my handbag to find that I had forgotten my credit card.
- The correct answer is a. had forgotten. "Had forgotten" is the past perfect form of the verb "forget" used in past actions that happened before another past action. In this case, it means that the forgetting of the credit card happened before the opening of the handbag.

3. I went to the library, then I bought some milk and went home.
- The correct answer is c. bought. "Bought" is the past simple form of the verb "buy" used to indicate a completed action in the past. In this case, it means that the buying of the milk happened after going to the library and before going home.

4. Mary has made a lot of mistakes in her test.
- The correct answer is d. has made. "Has made" is the present perfect form of the verb "make" used to indicate an action that started in the past and has a connection to the present. In this case, it means that Mary made mistakes in her test, and this action is relevant to the present moment.

5. What did you do at school yesterday?
- The correct answer is a. did you do. "Did you do" is the past simple form of the verb "do" used to ask about completed actions in the past. In this case, it means asking someone about their activities at school on the previous day.

6. Has Andrea been to many countries of the world?
- The correct answer is b. Has Andrea been. "Has Andrea been" is the present perfect form of the verb "be" used to ask about someone's experiences or visits. In this case, it means asking if Andrea has visited many countries.

7. When did you buy this wonderful hat?
- The correct answer is a. did you buy. "Did you buy" is the past simple form of the verb "buy" used to ask about a specific time or occasion in the past when something was bought. In this case, it means asking when the person bought the wonderful hat.

8. He looks tired. He has been working all night.
- The correct answer is b. has been working. "Has been working" is the present perfect continuous form of the verb "work" used to indicate an action that started in the past, is still happening, and has a connection to the present. In this case, it means that he has been working continuously throughout the night, and that's why he looks tired now.

9. He has been reading this report since afternoon.
- The correct answer is a. has been reading. "Has been reading" is the present perfect continuous form of the verb "read" used to indicate an action that started in the past, is still happening, and has a connection to the present. In this case, it means that he has been continuously reading the report since the afternoon.