①与or not连用:They asked us whether or not we were coming. ②在介词之后:It depends on whether it is going to rain. 3.在不定式之前:We haven’t decided whether to go there. 3. 如果宾语从句原来是特殊疑问句,只需用原来的疑问词引导。 1. What is he doing...
But be careful, with negative and qustion forms, we don't include 'd' at the end of 'use'.用法总结 Used to （1） 'Used to' describes repeated actionsor habits in the past.“Used to” 可以描述过去时常做的事情或过去的习惯。I used toplay football afte...
be used to do是“被动语态”,表示“被用于做某事” It can be used to do the same thing. 这个可以用来做相同的事情 Beer is used to be the party drink. 啤酒可以被用作派对饮品
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