题目内容

【C2】

A. test
B. observe
C. measure
D. watch

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【C1】

A. beside
B. next
C. near
D. behind

【C4】

A. which
B. because of
C. for
D. when

【C5】

A. that
B. what
C. Where
D. which

When you line up to wait for your turn in the United States, you should ______ your front

A. stick to
B. lean on
C. keep a certain distance from
D. stay far away from