Themessageisveryimportant,soitissupposed

问题详情：

The message is very important, so it is supposed_____as soon as possible.A. to be sent         B. to send         C. being sent         D. sending

【回答】

A 解析be supposed to do是固定搭配。又因it（the message）与send因为被动关系，故用动词不定式的被动语态。

知识点：其他

题型：选择题