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科目: 來源:不詳 題型:單選題


Although the causes of cancer ____we do not yet have any practical way to prevent it.
A.a(chǎn)re being uncoveredB.have been uncovering
C.a(chǎn)re uncoveringD.have uncovered

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科目: 來源:不詳 題型:單選題


5.―Have you handed in your schoolwork yet?
 ―Yes,I have. I guess it ____ now.
A.has gradedB.is gradedC.is being gradedD.is grading

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科目: 來源:不詳 題型:單選題


一Have you handed in your schoolwork yet?
一Yes,I have.I guess it _____ now.
A.has gradedB.is graded
C.is being gradedD.is grading

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科目: 來源:不詳 題型:單選題


Since 1 won the big prize,my telephone hasn’t stopped ringing. People____to ask how I am going to spend the money.
A.phoneB.will phone
C.were phoningD.a(chǎn)re phoning

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科目: 來源:不詳 題型:單選題

let’s go out now. It _____ any more.
A.didn’t rainB.doesn’t rainC.won’t rainD.isn’t raining

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科目: 來源:不詳 題型:單選題

— ________ for the glass! —It’s OK. I’m wearing shoes.
A.Look outB.Walk out
C.Go outD.get out

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科目: 來源:不詳 題型:單選題

We’re going to ________ with some friends for a picnic. Would you like to join us?
A.get inB.get over
C.get alongD.get together

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科目: 來源:不詳 題型:單選題

They say the snow will ________ until the end of next week.
A.keepB.last
C.startD.stay

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科目: 來源:不詳 題型:單選題

A red sky in the morning _____ to be a sign of bad weather.
A.saysB.is saying
C.has saidD.is said

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科目: 來源:不詳 題型:單選題

New medicines and instruments ______ every day to extend life.
A.developB.a(chǎn)re being developed
C.a(chǎn)re developingD.have developed

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