She felt _____ of having asked such a silly question when the audience couldn't help laughing.
| A．guilty | B．crazy | C．miserable | D．ashamed |
We’re so busy that no one in the office can _____ for any other work.
| A．spare | B．be spared | C．share | D．be shared |
It’s a very kind offer, but I really _____ accept it.
| A．mustn’t | B．needn’t | C．can’t | D．don’t |
That car nearly hit me; I ______.
| A．might be killed | B．might have been killed |
| C．may be killed | D．may been killed |
“I called you yesterday. A woman answered, but I didn’t recognize her voice.” “Oh, it _____ my aunt Jean.”
| A．must be | B．must have been | C．might be | D．can have been |
“I thought you wouldn’t mind.” “Well, as a matter of fact I don’t, but you _____ me first.”
| A．should ask | B．should have asked | C．must ask | D．must have asked |