Choose the incorrect model verbs

We …… throw litter to the rivers, seas and lakes
a) shouldn’t
b) must
c)mustn’t
d) can

A: I won't have time to go to the cleaner's tommorow.
B: Don't worry. I am going to pick up your suit for you.
A: Why do you want to go to the supermarket so late at night.
B: I am going to shop while it's quit and uncrowded.
A: I am having a lot of trounle in my statics class.
B: Stop worrying. I am going to help you.
A: What are you doing with that screw driver?
B: I am going to fix our television.
A: Why have you bought these map?
B: We are going to drive to the lake District next month.
A: I winder where ny book is.
B: Oh, I am going to bring it tomorrow.
A: What arre you going to do today?
B: I am going to lie on the beach and listen to the waves.

1. Everything is going well. We haven't had any problems so far.
2. Margaret didn’t go to work yesterday. She wasn't feeling well.
3. Look! That man over there is wearing the same sweater as you.
4. Your son is much taller than when I last saw him. He has grown a lot.
5. I still don't know what to do. I haven't decided yet.
6. I wonder why Jim is being so nice to me today. He isn't usually like that.
7. Jane had a book open in front of her but she wasn't reading it.
8. I wasn’t very busy. I didn’t have much to do,
9. Mary wasn't happy in her new job at first but she is beginning to enjoy it now.
10. After leaving school, Tim found it very difficult to get a job.