When Marx was in London, he _______ read at the library for hours.
| A．would | B．might | C．could | D．should |
So in the darkness that he didn’t dare to move an inch.
| A．frightened was he | B．he was frightened |
| C．was he frightened | D．frightened he was |
I didn’t know his telephone number, otherwise I him.
| A．had telephoned | B．would telephone |
| C．would have telephoned | D．telephoned |
—Is the money your parents give you enough?
—No, I have to have a part-time job to my school expenses.
| A．cost | B．pay | C．cover | D．offer |
A computer can’t remember who ; it simply does what .
| A．will use it; it is told | B．uses it; it has told |
| C．used it; it is told | D．has used it; it told |
Emergencies and unexpected situations happen all the time.
| A．may | B．can | C．must | D．should |