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科目: 来源: 题型:013

Students ________ the professor in doing the experiment yesterday.

A. help

B. assist

C. helped

D. assisted

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科目: 来源: 题型:013

We had a lot of ________ in repairing it.

A. anger

B. annoy

C. bother

D. annoying

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科目: 来源: 题型:013

?I've ________ done it.

?Really? I did mine hours ago.

A. already

B. yet

C. just

D. just now

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科目: 来源: 题型:013

There are a lot of ________ lights here.

A. electric

B. electrical

C. electrician

D. electricity

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科目: 来源: 题型:013

________ he fell behind others, but at last he caught up with others.

A. At the start

B. In the end

C. Finally

D. First of all

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科目: 来源: 题型:013

He hasn't much ________ .

A. heat

B. hot

C. hotter

D. fever

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科目: 来源: 题型:013

I think mobile phone was ________ after the car.

A. invent

B. invented

C. discover

D. discovered

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科目: 来源: 题型:013

My mother used ________ early.

A. to get up

B. to getting up

C. got up

D. to got up

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科目: 来源: 题型:013

English is used ________ a very useful working language.

A. for

B. as

C. to

D. with

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科目: 来源: 题型:013

I heard ________ him, but I didn't know him.

A. in

B. of

C. at

D. on

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