When you ______ the book please return it to the library on time.
| A．get through | B．get along | C．look through | D．look up |
No matter how frequently _______, the works of Beethoven still attract people all overthe world.
| A．performed | B．performing |
| C．to be performed | D．being performed |
_____ is estimated is that 300 million farmers will become urban dwellers in three decades.
| A．It | B．As | C．That | D．What |
_______ is not the story itself but the lovely characters in it _______ make children interested in the cartoon.
| A．It; what | B．There; what | C．It ; that | D．There ; that |
The doctor is skilled at treating heart trouble and never accepts any gift from his patients, so he has a very good _______.
| A．expectation | B．reputation | C．contribution | D．civilization |
You _______ have told her the bad news last night, because she wouldn’t handle it peacefully.
| A．couldn’t | B．mustn’t | C．shouldn’t | D．mightn’t |