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[单选题]

Scientists didn't know much about lung cancer _____.

A.before long

B.until recently

C.long before

D.in the past

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发布时间：2022-12-04

更多“Scientists didn't know much about lung cancer _____.”相关的问题

第1题

Scientists are certain that the sea level____rise in the next 200 years.A. is going t

Scientists are certain that the sea level____rise in the next 200 years.

A. is going to

B. may

C. will

D. should

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第2题

I didn’t buy the book because I didn’t have()money on me.

I didn’t buy the book because I didn’t have（)money on me.

A.no

B.any

C.some

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第3题

I didn't want() to become suspicious.

I didn't want（) to become suspicious.

A.anybody

B.anyone

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第4题

The mason ______ I didn't do this exercise is I didn't know how to do it.A．why...becauseB．

The mason ______ I didn't do this exercise is I didn't know how to do it.

A．why...because

B．why...that

C．for...that

D．that...because

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第5题

弯曲应力的单位是（)。

A.Pa

B.kg

C.t

D.kN

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第6题

Mary didn’t turn()until the train left.

Mary didn’t turn（)until the train left.

A.out

B.in

C.up

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第7题

It's a pity that he didn't come earlier．

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第8题

The food wasn' t good and we _______________ finishit. A. don't B. didn't

A.A. don't

B.B. didn't

C.C. wasn't

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第9题

Jack didn't see the museum steps, so he ______ （fall)down.

Jack didn't see the museum steps, so he ______ (fall)down.

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第10题

I didn’t do it () purpose it was an accident.

A.to

B.on

C.of

D.in

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