China is a peace-loving country and under ____ circumstances ____ first use nuclear weapons.
| A．no; will China | B．no; China will |
| C．all; will China | D．all; China will |
.
Would it be ________ for you to pick me up at four o’clock and take me to the airport?
| A．free | B．vacant | C．handy | D．convenient |
.
By the time he realizes he ________ into a trap, it’ll be too late for him to do anything about it.
| A．walks | B．walked | C．had walked | D．has walked |
.
This photo of mine was taken ________ stood the famous high tower.
| A．which | B．where | C．in which | D．there |
.
________ was most important to her, she told me, was her family.
| A．It | B．This. | C．What | D．As |
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The mail was ________ for two days because of the snow storm.
| A．held out | B．held off | C．held up | D．held down |