The stone ______ as much as two tons.

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He is such a funny sort of person ______ I don't understand at all.

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Don't leave the water ________ while you brush your teeth.

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He will compete _________ his old friends__________ the first place.

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Many a change _________ in China in the past ten years.

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A．have happened

B．has been happened

C．have been happened

D．has happened

--It took me ten years to build up my business, and it almost killed me.

--Well, you know what they say. ______.

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A．There is no smoke without fire

B．Practice makes perfect

C．All roads lead to Rome

D．No pains, no gains

I will never forget the party which ______ up with a song sung by Song Zuying.

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Emperor Qin Shihuang had all the walls joined up in order to ______ the kingdom ______ foreign attack.

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He will compete ______ his old friends ______ the first place.

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The price ______, but I doubt whether it will remain so.

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