Without the contribution of Qian Xuesen, China __________ such great achievements in space technology.
| A．wouldn't make |
| B．can't make |
| C．shouldn't have made |
| D．wouldn't have made |
I _______ you, but I was too busy then.
| A．will help | B．helped |
| C．could have helped | D．should have |
—Everybody is going to climb the mountain . Can I go too , mom ?
— ______ Wait till you are old enough ,dear.
| A．Will you | B．Why not ? |
| C．I hope so . | D．I’m afraid not. |
As we all know, the director as well as the workers ______ responsible for the protection of the old buildings.
| A．were | B．are | C．is | D．was |
The manager came over and asked the customer how____
| A．did the quarrel came about |
| B．the quarrel had come about |
| C．had the quarrel come about |
| D．had the quarrel come about |
______he does has nothing to do with me.
| A．whatever | B．No matter what | C．That | D．If |