问题描述：
it is/was adj.for sb to do sth.真正的主语是to do sth,sb是此句的宾语,又是to do s...
it is/was adj.for sb to do sth.真正的主语是to do sth,sb是此句的宾语,又是to do sth的逻辑主语,it还是形式主语,sb和is/was没什么关系,所以 sb可以用their,us,his,her替换.下面的句子对吗?It is important for their to learn English well.
it is/was adj.for sb to do sth.真正的主语是to do sth,sb是此句的宾语,又是to do sth的逻辑主语,it还是形式主语,sb和is/was没什么关系,所以 sb可以用their,us,his,her替换.下面的句子对吗?It is important for their to learn English well.
问题解答：
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