We believe scientists will ________a way to solve the problem of air pollution.A

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We believe scientists will ________a way to solve the problem of air pollution.

A．set off

B．put off

C．come up with

D．catch up with

答案

举一反三

_______ interests me most in the world is the natural beauty of Guilin.

A．That

B．Which

C．it

D．What

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—I’m sorry to have kept you waiting.
—Oh, not at all. I ______here for only a few minutes.

A．have been

B．had been

C．was

D．will be

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—Lucy, let me help you fix your computer.
—__________. I can manage it myself.

A．That’s OK.

B．No, thanks.

C．Perhaps not

D．Not at all.

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With this spring’s sports meet on 26th,April______, we find the track on the play ground newly______ with white paint and students of each class more united than ever.

A．in the corner, mark	B．around the corner, marked
C．in the corner, marking	D．around the corner, be marked

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.Hearing that a 7.1-magnitude earthquake hit the Yushu county, Qinghai province on April 15,the students’ union______us to donate money for the quake-hit area.

A．called up

B．called for

C．called in

D．called on

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