It is very kind of you to do the washing-up, but you __ it.
| A．mustn’t have done | B．wouldn’t have done |
| C．mightn’t have done | D．didn’t have to do |
— Is everyone here?
— Not yet．Look，there ______________ the rest of our guests!
| A．come | B．comes | C．is coming | D．are coming |
The boy was so tired that he fell asleep _____________ his mother could take off his clothes．
| A．before | B．after | C．while | D．where |
—Why not find a new job?
—Why should I? I _____________ as much，but I like what I'm doing．
| A．didn't earn | B．don't earn | C．hadn't earned | D．haven’t earned |
Advertising can influence consumers' moods，_____ in turn，can influence consumers’reactions to products．
| A．that | B．which | C．where | D．when |
The scientist spent years alone in the forest，____ by eating wild fruit and small animals．
| A．surviving | B．survived | C．to survive | D．having survived |