27．Many students were watching the story of the heroes from Changjiang University on TV, ________ moved to tears.
| A．all of them | B．all of whom | C．all of that | D．all of which |
So sudden _____ that the enemy had no time to escape.
| A．did the attack | B．the attack did | C．was the attack | D．the attack was |
Mary and I see each other ______, but not as often as we used to.
| A．sooner or later | B．in a while | C．sometime | D．now and then |
Amy joined a painting group but didn’t seem to _____, so she left.
| A．show off | B．go up | C．fit in | D．come over |
Sorry, LiMing, I’m afraid I have to ______. Someone is calling me.
| A．ring over | B．ring off | C．ring out | D．ring up |
Jack went back home after a heated discussion, _______.
| A．annoyed and tired | B．annoying and tired |
| C．annoyed and tiring | D．annoying and tiring |