摘要: It is written clearly in the requirements that all passengers check onto board thirty minutes before the plane takes off. A. may B. can C. will D. shall [解析](D) shall作为情态动词.用于第二.三人称中表示许诺.警告.命令的意思.
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It is written clearly in the requirements that all passengers _______ check onto board thirty minutes before the plane takes off.
A. may B. can C. will D. shall
查看习题详情和答案>>It is written clearly in the requirements that all passengers _______ check onto board thirty minutes before the plane takes off.
A. may??? ???? B. can? ?? ? ? C. will ????? D. shall
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It is written clearly in the requirements that all passengers _______ check onto board thirty minutes before the plane takes off.
A. may B. can C. will D. shall
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