Question

Read these sentences and fill in the gaps with the correct variant (must, mustn’t, have to, don’t have to, doesn’t have to or has to).
1. You___ stop at the red light.
2. You __stop smoking. It is very harmful.
3. Students___ look at their notes during the test.

Answer 1

1. You must stop at the red light.

2. You must stop smoking. It is very harmful.

3. Students mustn't look at their notes during the test.