——You didn’t wait for Mr. Black last night, did you?
——No, but we ____. He didn’t return home at all.
| A．couldn’t have | B．needn’t have |
| C．didn’t need to | D．should wait have |
I can't make a decision now. I need _________ more time to think it over.
| A．rather | B．fairly | C．quite | D．lot |
He is believed____________ in at his office on his way home.
| A．dropping | B．to have dropped |
| C．having dropped | D．to be dropped |
The boss____________ the worker how to do it, or the accident couldn't have happened.
| A．can't have told | B．ought to tell |
| C．could have told | D．mustn't have told |
She liked the dictionary so much that she would like to take it ____________ it cost.
| A．why | B．how much | C．whatever | D．how expensive |
--Have you any oranges and apples?
--__________
| A．Yes, madam, on the second shelf over there |
| B．The oranges are very cheap. |
| C．You like apples, don’t you? |
| D．Of course, we have some fruits. |