______the morning train，he would not have been late for the meeting．
| A．Did he catch | B．Should he catch |
| C．Had he caught | D．Has he caught |
—Did he come back late last night?
—No．It was not yet eight o'clock _____ he arrived home．
| A．before | B．that | C．until | D．when |
Students are now preparing for the college entrance exam．and I hope their efforts will _____．
| A．come on | B．go up | C．stand out | D．pay off |
—You just think of yourself! You kept me wailing for at least three hours．
—I’ m sorry that you _____ think so．
| A．would | B．should | C．could | D．might |
．John has got a fever these days, and he says he doesn’t want to see a doctor, but I’m afraid he has no _____．
| A．idea | B．treatment | C．alternative | D．chance |
If you find yourself _____ no one will help you, please call me．
| A．where | B．when | C．which | D．what |