27.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 【查看更多】

 

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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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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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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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