I don't think it __________ to stay up late in the night and sleep until midday the next day.
| A．makes a difference | B．makes good sense |
| C．makes trouble | D．makes profit |
. We _______ have proved great adventures, but we have done the greatest march ever made in the past ten years.
| A．needn’t | B．may not | C．shouldn’t | D．mustn’t |
All the people in the nation can remember exactly how many years ago _______ the civil war broke out.
| A．was it that | B．it was when | C．it was that | D．was it when |
_______ difficult the task may be, we must finish it on time, because we can’t meet such a precious opportunity _______ we have expected.
| A．Whatever; that | B．However; as |
| C．However; that | D．Whatever; which |
The earthquake in Yushu, Qinghai Province damaged many houses and business buildings； _______, it caused more than 1,000 deaths.
| A．or else | B．therefore | C．after all | D．besides |
Catherine bought a postcard of the place she was visiting, addressed _______ to _______ and then posted it at the nearby post office.
| A．it; her | B．it; herself | C．herself; her | D．herself; herself |