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。
Zhang Zhengmao has been doing wheat breeding for over 30 years. Like his predecessors, he has been using traditional methods like cross-breeding to produce better plants an...
"The water we used to drink tasted muddy, no matter whether it was being used to cook rice or make tea. If I had continued to use it no tourists would have come to eat at m...
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