英语~~The box is too heavy to lift.lift后面加it麽?老师说lift 后面不加代词it是因为to lift做的是too heavy的状语、整个句子是主系表.所以不加.但如果是It is too heavy to lift呢?是不是该加啊?就像It is good for us to study English /It作形式主语?
问题描述：
英语~~The box is too heavy to lift.lift后面加it麽?
老师说lift 后面不加代词it是因为to lift做的是too heavy的状语、整个句子是主系表.所以不加.
但如果是It is too heavy to lift呢?是不是该加啊?就像It is good for us to study English /It作形式主语?
答