摘要：表推测的情态动词句子的反意疑问句 He must/may be in the room, isn’t he? He can’t be in the room, is he? He must have finished the work, hasn’t he? He may have done the work last night, didn’t he? :情态动词+行为动词进行式 情态动词+行为动词进行式(即情态动词+ be + v-ing形式).表示推测或评论某动作现在是否正在进行.例如: 1)He must be playing basketball in the room. 2)She may be staying at home.
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Complete the following sentences with a proper modal verb．
(用适当的情态动词完成下面句子。)
They ________ be writing their compositions in the classroom now．I saw them in the classroom．
判断下列哪个句子中的情态动词使用恰当。
(1)Before the room fell to the ground because of the terrible fire, many people could escape from it．
(2)May you and your whole family be happy all the year round．
(3)It is very cold, should he close the door?