Choose the correct answer.
1 You …B… do your homework before you watch TV.
A can't B should C shall
2 … I come in? It's rather cold out here.
A Should B May C Must
3 You … water the plants this weekend; the look dry.
A are able to B needn't C ought to
4 … you collect the children from school, please
A Must B Will C May
5 … you play the piano?
A Can B Must C Should
6 I … buy some milk. There isn't any left.
A mustn't B may C must
7 When … I call you?
A shall B must C needn't
8 I … swim before I was able to walk.
A might B could C can
9 You … walk to work. I'll give you a lift.
A must B needn't C may
10 Tim … be out. There are no lights on.
A shall B should C must