．---It is reported that there is _____ big breakthrough in the cancer treatment．
---If only my son could be brought back to _____ life!
| A．a; / | B．/; a | C．the; the | D．a; the |
I can’t find the recorder in the room. It ________ by someone.
| A．may take | B．may have been taken away |
| C．must have taken away | D．needn’t have been taken away |
The reason ______ he failed was _______ he was too careless
| A．because; because | B．why; because | C．that; that | D．why; that |
When the thief found the police had already ______ him, he ran away quickly.
| A．realized | B．known | C．spotted | D．stared |
---I’m sorry. I _________at you the other day.
---Forget it. I was a bit out of control myself.
| A．shouldn’t have shouted | B．shouldn’t shout |
| C．mustn’t shout | D．mustn’t have shouted |
Sir, you are not allowed to enter the building unless you get our manager’s__.
| A．permission | B．connection | C．instruction | D．introduction |