Be sure to practise all four language skills -__,reading,wri

Be sure to practise all four language skills -__,reading,writing ,listening and speaking
为什么要用that is 不用they are ,this is 讲一下做法
grain0813 1年前 已收到1个回答 举报

pmel 幼苗

共回答了18个问题采纳率:94.4% 举报

that is是that is to say的简略形式,是一种固定搭配,做插入语,意思是“就是说”.作为独立成分,与主句主语没有主谓关系.

1年前

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