с сделайте номер 2 и номер 340

2.

a) I will be very sorry, if my friend betray me one day.

b) After I do my homework, I will call my cousin.

c) As soon as Dad comes home, Mum will ask him to drive her to her friend.

d) If I don't trust a person, I will never make friends with him/her.

3.

1. c

2. d

3. a

4. e

5. g

6. b

7. f