Complete the sentences using the given verbs

you / exercise three times a week (should)

[ ] 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.