We stayed at the lab our teacher returned. A. till B. by C. during D. while——青夏教育精英家教网——

题目内容

We stayed at the lab ___ our teacher returned.

A. till
B. by
C. during
D. while

试题答案

A

相关题目

We stayed at the lab ___ our teacher returned.

A. till
B. by
C. during
D. while

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