Fill in the modal verbs: can, can’t, may, must, should

1) – Sir, 1) I come in?

- No, you may not. You are late. You 2) come to class earlier.

2) – Tom, 3) you help your mother now?

- Yes, dad. By the way, I always help her. I know that children 4) help their parents.

3) – Jane, your granddad is ill. He is in hospital. You 5) visit him. 6) you do it today?

- No, mum, I 7). I’ll go there tomorrow.