.________all his courage, he invites Celine to get off the train with him．
| A．To gather | B．Gathered | C．Gathering | D．Being gathered |
Some steps have been taken to protect the forest _______.
| A．from being destroyed | B．from destroying |
| C．to destroy | D．to be destroyed |
She can’t get down to work because she was deeply _______ by the news of his death.
| A．surprised | B．affected | C．harmed | D．charged |
--- Are you going to attend Jay Chou Concert in Suqian this weekend?
--- ______. It’s too good a chance to miss. I’m his die-hard fan.
| A．It’s up to you | B．That’s for sure |
| C．Bad news travels fast | D．I have faith in him |
--- Who ______ it be that is singing in the next room?
--- It _______ be Lucy, but I am not sure.
| A．can ; may | B．may ; can | C．can; must | D．must; may |
Not until World War II ______ to use new chemical techniques to purify penicillin.
| A．they managed | B．that they managed |
| C．did they manage | D．they didn’t manage |