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Gun control is a subject _____ Americans have argued for a long time.
| A．of which | B．with which | C．about which | D．into which |
The price of the houses in this district_________from 5% to 7% in the past two months.
| A．has fallen | B．has been fallen | C．was fallen | D．was falling |
We’re living in a society_________ exchanging ideas is an important part in communication.
| A．which | B．that | C．why | D．where |
Walking in space _________sound easy, yet great care and skills are required.
| A．may | B．shall | C．should | D．must |
—Did you watch the cartoon film Astro Boy in the People’s Theatre last night？
—I had planned to, but it_________hard all the time.
| A．is raining | B．was raining | C．has rained | D．rained |
Jeff sold most of his things. He has hardly_________ left in the house.
| A．something | B．everything | C．nothing | D．anything |