Thestoryhappensacoldmorning.A．

The story happens _____a cold morning.

A．in

B．on

C．at

D．for

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A．As a result

B．However

C．Otherwise

D．Since then

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—At four o’clock．It ______ for 15 minutes．

A．was on

B．began

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A．three-eighths

B．third-eighth

C．three-eighth

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A．showed

B．spread

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D．Explored

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The workers recycle the old newspapers ______use them．

A．so that don’t

B．in order not to

C．in order to

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