be to do 表示将要做某事可以用，且表示1）按计划或安排要做的事 2）表示指令，相当于should,ought to, must, have to, This meicine is to be taken three times a day. 3) 表示 想，打谈樱算含仿丛大帆，相当于intend to , want to If you are to listen to the consert, you'd better hurry up.
be动词什么时候后面加to?
Simone
发布于 2023-12-02 02:28:43
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