Wang Lin failed to be admitted by Hong Kong University last year, and only then _______ the importance of English.
| A．he finally realized | B．he had realized |
| C．did he realize | D．had he realized |
—We need a person badly to think up such an idea .
—the new comer have a try ?
| A．Shall | B．May | C．Should | D．Need |
—Where ____ Margaret have put the empty bottles?
—She ______ them away. They must be somewhere.
| A．can; can’t have thrown | B．must; needn’t |
| C．must; must have thrown | D．can; must throw |
—Why aren’t they here yet?
—They the bus.
| A．can have missed | B．must be late for |
| C．may have missed | D．might be late for |
—Has your father got up?
—Sorry, I’m not sure. He __________ got up. Please go and see for yourself.
| A．must have | B．can’t have | C．would have | D．might have |
－You must say sorry to Mary, Jack.
－Why ________ I say sorry to her? It’s her who hurt me first.
| A．should | B．would | C．could | D．might |