—How did you like the concert last night ?
—I enjoyed it very much, but the dancers _____ a better job．
| A．could have done | B．must have done |
| C．could do | D．had done |
He realized she was crying ________ his words.
| A．because | B．because of | C．as | D．since |
Mary, ________ here. Everybody else, stay where you are.
| A．come | B．comes | C．to come | D．coming |
The famous film star wore dark glasses so that no one would him.
| A．reach | B．recognize | C．realize | D．know |
catch the first bus, he got up very early this morning.
| A．In order to | B．In order that | C．So as to | D．So that |
--Look! The telephone is broken. Someone damaged it ________ purpose.
--That may be right. But perhaps it was broken _________ accident.
| A．on; by | B．by; by | C．on; on | D．by; on |