Scientistssayitmaybefiveorsixy

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更新 2022-09-03
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Scientists say it may be five or six years _______ it is possible to test this medicine on human patients.

A．since

B．after

C．before

D．when

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You will see this product made in this factory________ wherever you go．

A．to be advertised

B．advertised

C．advertise

D．advertising

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─ the plane to Beijing have taken off on time?
—I’m afraid not．The fog was too thick then．

A．Would

B．Should

C．Must

D．Could

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—Can you give me the right answer?
─Sorry I________ .Would you repeat the question?

A．hadn’t listen	B．haven’t listened
C．don’t listen	D．wasn’t listening

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—How are they getting on?
—All gets on well as___________．

A．to be planned	B．being planed
C．planned	D．planning

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–Isn’t it a surprise that I happened to meet Francis Mathews at the Christmas Party last week?
--If my memory serves me correctly, you ____ each other for exactly two years.

A．hadn’t seen

B．haven’t seen

C．didn’t see

D．don’t see

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