Without the air to hold some of the sun’s heat, the earth at night ____ for us to live.
| A．would be freezing cold | B．will be freezing coldly |
| C．would be frozen cold | D．can freeze coldly |
Most Saturday evenings they cook meals ___ open fire outside.
| A．in | B．over | C．on | D．above |
_____ in the queue for half an hour,Tom suddenly realized that he had left his wallet at home.
| A．To wait | B．Have waited | C．Having waited | D．To have waited |
The library needs _____,but it’ll have to wait until Friday.
| A．cleaning | B．to clean | C．being cleaned | D．to being cleaned |
--- Catherine, I have cleaned the room for you.
---Thanks. You _______ it. I could manage it myself.
| A．needn’t do | B．shouldn’t have done | C．mustn’t do | D．needn’t have done |
It didn’t take the children long to________ the correct answer.
| A．carry out | B．figure out | C．turn out | D．give out |