—Must I finish the work today?
—No, you .
| A．can’t | B．mustn’t | C．needn’t | D．don’t |
_____? We’re going sightseeing.
| A．What are you doing? | B．Where are you leaving |
| C．Who are you going with | D．When are you going |
I want to buy a bike. At last I decided ____ a black one.
| A．to buy | B．buy | C．buys | D．buying |
Where____ he ____ for his next vacation?
| A．does, leave | B．is, leave |
| C．is, leaving | D．is, leaveing |
I have a sore back. You should _____ down and rest.
| A．to lie | B．lying | C．lie | D．lied |
It’s a good habit ____ breakfast every day.
| A．had | B．have |
| C．has | D．to have |