题目内容
Please _________, because this is a reading room.
A. quiet B. to be quiet C. be qui
et D. to quiet
C. 本句是祈使句,应以动词原形开头。
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题目内容
Please _________, because this is a reading room.
A. quiet B. to be quiet C. be qui
et D. to quiet
C. 本句是祈使句,应以动词原形开头。