用括号里所给动词的适当形式填空。注意：每空不限一词。

小题1:My grandfather is a farmer and he isn’t used to ___________(live) in the city.

小题2:When the fans saw their favourite pop star, they couldn’t stop ____________(scream).

小题3:–You car looks cool. When ________ you ________(buy) it?    --Last week.

小题4:I____________(not hear) from my brother for a long time.

小题5:It’s dangerous ____________(climb) Mount Huang on cold and snowy days.

小题6:I think this film is the best one I ____________(see) before.

下列关于浓硫酸的说法不正确的是[ ]

A．常温下浓硫酸可以用铝制容器盛放

B．室温下浓硫酸与铜片会发生剧烈的化学反应

C．浓硫酸与灼热的木炭反应生成二氧化硫、水和二氧化碳

D．浓硫酸有吸水性常用作干燥剂