(2) Does Cathy go to school early? Do you know? 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 w...
1. 用作及物动词时,注意后接动名词 或不定式的复合结构: 正:He advised leaving early. 他建议早点出发。 正:He advised us to leave early. 他建议我们早点出发。 误:He advised to leave early. 注意 advise
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