Do you know if /whether Cathy goes to school early? 注意:只能用whether而不用if的三种情况如下: 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 whe...
由于受汉语的影响,许多同学在写作时经常忽略句子的主谓一致关系,从而造成错误。 例:Once one have money,he can do what he want to do.人一旦有了钱,他就能想干什么就干什么。 解析:one是单数第三人称,因而本句的have应改为has;同理,want应改为wants,本句是典型的主...
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