________ work has been done to improve the people’s living standard.
| A．A large amount of | B．A large number of |
| C．A great deal | D．A great many |
Would you give him my best regards as soon as he ____?
| A．came | B．come | C．has come | D．comes |
As a child, I was told that the moon ___ no light of its own. I simply didn't believe it.
| A．has | B．have | C．had | D．had had |
Oh, it's you! I didn’t know you ___ here!
| A．am | B．were | C．have been | D．will be |
--I’m told that you are leaving for Shanghai. ----Who ____ so?
| A．says | B．said | C．has said | D．’s saying |
--I don't think you can manage it. ----That ____!
| A．will all depend on | B．will all depend | C．all depends | D．all depends on |