Complete each sentence with two to five words including the word in bold. 1 It isn't necessary to wait for us.

have

You …don't have to wait… for us.

2 Taking pictures inside the museum is forbidden.

must

You the museum.

inside

3 Is it necessary for you to leave so early?

have

Do

so early?

4 It isn't necessary to go by taxi. I'll give you a lift.

needn't You

by taxi.

I'll give you a lift.

5 Keeping pets in the building is forbidden.

must

You

in the building.

6 It isn't necessary to water the flowers.

have

You

the flowers