Bytheyear2020scientistsalotofr

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By the year 2020 scientists _____ a lot of research on AIDS.

A．had done

B．do

C．are doing

D．will have done

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--- What about ______ bike?
--- Don’t you think it all right to buy him that bike as _____ birthday gift?

A．the, a

B．a, a

C．a, 不填

D．不填, the

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--- Please tell James that he has got the highest mark in the final examination.
--- _______. He never did so well before.

A．Congratulations	B．That’s what I expected
C．What a pleasant surprise	D．That’s right

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This ____ girl is Mary’s cousin, who is very lovely.

A．pretty little Spanish	B．Spanish little pretty
C．Spanish pretty little	D．little pretty Spanish

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---Look at these tracks. It _____ be a wolf.”
---Don’t be so sure. I think it _____ be a fox.

A．must; could

B．may; might

C．need; must

D．could; need

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The young pianist is very excited because the concert given by him has never been ____ .

A．successful	B．more successful
C．most successful	D．the most successful

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