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單項(xiàng)選擇題

Usually the teachers will be busy （） the test papers after an examination.

A.grading
B.naming
C.ranking
D.grouping

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單項(xiàng)選擇題

The problem, according to the experts, is （） we should do with the salty land.

A.what
B.whether
C.how
D.that

單項(xiàng)選擇題

As we all know, the government is now making every （） to set up a harmonious society.

A.effort
B.effect
C.measure
D.performance

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