Mark was a student at this university from 1999 to 2003, ____ , he studied very hard and was made Chairman of the Students' Union.
| A．during which time | B．for which time | C．during whose time | D．by that time |
The teacher ____________his students to leave the classroom as soon as possible .
| A．required | B．suggested | C．demanded | D．desired |
Most Americans would prefer to keep their problems _________ themselves and solve their problems __________ themselves.
| A．to ,by | B．by ,to | C．for,to | D．in,on |
— How about a film tonight?
— __________ I haven’t been to the cinema for a long time.
| A．Yes, thanks. | B．Why not? | C．No, go away. | D．It’s a pity. |
— What do you think of the book?
— Oh, excellent. It is worth __________ second time.
| A．to read a | B．read a | C．reading a | D．being read a |
I’m feeling sick. I __________so much chocolate.
| A．needn’t have eaten | B．couldn’t have eaten |
| C．mustn’t have eaten | D．shouldn’t have eaten |