---Try to remember to turn off the light when you leave the room.
---I’m trying to expenses.
| A．keep off | B．keep down | C．keep out | D．keep from |
--- I saw your uncle take a taxi to the airport. Why didn’t you drive him there?
--- I ______. But my car ______.
| A．would; was fixed | B．would have; was fixed |
| C．would have; was being fixed | D．did; was being fixed |
I will be surprised if you can get Calvin, who is very mean, ______ these donation draw tickets from you．
| A．buy | B．buying | C．buys | D．to buy |
As is known to all language learners, newly learnt words will soon be forgotten unless ______ used in everyday communication.
| A．exactly | B．finally | C．gradually | D．frequently |
Many students listened to the lecture, but I wondered how much they ______.
| A．took out | B．took up | C．took off | D．took in |
I think that something has to be done to stop the air from being polluted, ______ ?
| A．doesn't it | B．don’t I | C．don't they | D．haven't they |