Task 1 1) I can't imagine her (drive) a car. 2) He agreed (buy) his son a new CD player. 3) I enjoy (drive) at night. 4) The man asked me (open) the door. 5) I look forward to…

Task 1

1. I can't imagine her driving a car.
   Explanation: In this sentence, we use the -ing form of the verb ("driving") because it follows the verb "imagine."

2. He agreed to buy his son a new CD player.
   Explanation: After the verb "agreed," we use the infinitive form of the verb ("to buy").

3. I enjoy driving at night.
   Explanation: We use the -ing form of the verb ("driving") after the verb "enjoy."

4. The man asked me to open the door.
   Explanation: After the verb "asked," we use the infinitive form of the verb ("to open").

5. I look forward to seeing you at the weekend.
   Explanation: Following the phrasal verb "look forward to," we use the -ing form of the verb ("seeing").

6. Are you thinking of visiting New York?
   Explanation: After the phrasal verb "thinking of," we use the -ing form of the verb ("visiting").

7. We decided to stay in that beautiful town.
   Explanation: After the verb "decided," we use the infinitive form of the verb ("to stay").

8. The teacher expected Michael to study hard.
   Explanation: Following the verb "expected," we use the infinitive form of the verb ("to study").

9. He doesn't mind working the night shift.
   Explanation: We use the -ing form of the verb ("working") after the verb "mind."

10. I learned to ride a bike at the age of 6.
    Explanation: Following the verb "learned," we use the infinitive form of the verb ("to ride").

11. The girl goes on reading the book.
    Explanation: Corrected the sentence, and now it uses the -ing form of the verb ("reading").

Task 2

1. B: Did I? That's strange. I don't remember lending you any money.
   Explanation: The correct verb form is "lending" after "remember" in this context.

2. We tried to put the fire out but we were unsuccessful. We had to call the fire-brigade.
   Explanation: After "tried," we use the infinitive form of the verb ("to put").

3. When you see Tom, remember to give him my regards, won't you?
   Explanation: After "remember," we use the infinitive form of the verb ("to give").

4. What do you intend to do about this problem?
   Explanation: Following "intend," we use the infinitive form of the verb ("to do").

5. I clearly remember leaving it by the window and now it has gone.
   Explanation: The correct verb form is "leaving" after "remember" in this context.

6. When she saw what had happened, she began laughing loudly.
   Explanation: We use the -ing form of the verb ("laughing") after the verb "began."

7. Sue needed some money. She tried to ask Gerry, but he couldn't help her.
   Explanation: After "tried," we use the infinitive form of the verb ("to ask").

8. He tried to reach the shelf, but he wasn't tall enough.
   Explanation: Following "tried," we use the infinitive form of the verb ("to reach").

9. "Did you remember to phone Ann?" "Oh no, I completely forgot."
   Explanation: After "remember," we use the infinitive form of the verb ("to phone").

10. I asked them to be quiet, but they continued to make a lot of noise.
    Explanation: After "continued," we use the infinitive form of the verb ("to make").

Task 3

1. I'll never forget sailing down the Volga on that lovely summer day.
2. I am so sorry; I forgot to let you know.
3. Don't forget to remind them about the party.
4. I remember seeing you somewhere.
5. Did you remember to water the plants today?
6. We regret to tell you that you have failed this exam.
7. He regrets making that mistake; now he doesn't have money.
8. After learning Spanish, she went on to make dinner.
9. They went on discussing this question for hours.
10. I'm sorry to interrupt, but can I ask you something?
11. Bob was sorry for shouting at his little sister.
12. He stopped smoking when he realized how dangerous it was.
13. Amanda stopped having a quick snack and then continued translating the article.
14. You should try exercising, you may feel better.
15. They tried to lift that tree trunk, but it was too heavy for them.
16. Being a doctor means helping people.
17. I am sorry; I didn't mean to hurt you.