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问题   更新时间2024/1/14 9:35:00

It is desirable that the airplane ___________ as light as possible.
· is
· were
· be
· had been

答案
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· were

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第1题

( )Send for a doctor quickly.The ma_____.
·will die
·is dying
·dies
·died
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第2题

( )Jack was the sort of mawho did not like his actions ____.
·be questioned
·questioning
·having questioned
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第3题

( )--Mary doesn.t like skating,does she--_____,but she used to.
·Yes,she does
·No,she does
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第4题

( )It __________Johand Kate who helped me the other day.
·is
·was
·are
·were
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