The students are busy in for the test. A. prepare B. prepares C. prepared D. preparing——青夏教育精英家教网——

题目内容

The students are busy in _____ for the test.

A. prepare
B. prepares
C. prepared
D. preparing

试题答案

D

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The students are busy in _____ for the test.

A. prepare
B. prepares
C. prepared
D. preparing

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