Complete the sentences using the given verbs
to exercise — should

You [ ] three times a week.

1. to book — had better

   We [ ] our flight tickets beforehand.

2. to be more polite — ought to

   The taxi driver [ ] more polite to his passangers.

3. to pass the street — shouldn't

   You [ ] when the light is red.

4. to leave — ought not

   Antony [ ] the children alone at home.

5. to take — had better not

   You [ ] grandmother's car without her permission.