—Whatoneartharethepolicebusywi

— What on earth are the police busy with?
— They _____into how the plane crash came about.

A．had been looking	B．were looking
C．would look	D．have been looking

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It was _____ opportunity to miss.

A．too good an	B．a too good
C．too a good	D．too good

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The lift in that tall building went wrong and got trapped _____ floors. People in it had no way to get out.

A．in	B．between
C．among	D．on

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-----“How long have you stayed in this hotel?”
----- “Not long, just ______ this Monday.”

A．on	B．since
C．until	D．after

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A．off	B．along
C．on	D．around

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It used to be thought _____ the Earth was flat.

A．as	B．when
C．since	D．that

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