Mary, you’d better not have hamburgers for lunch.It’s bad for you _______ too much junk food.

A. eat                                                                        B. to eat

C. eating                                                                   D. atex


B  “It’s + adj. +for sb. + to do sth.”是固定句型，意為“對(duì)某人來(lái)說(shuō)做某事是……的”。句中it 作形式主語(yǔ)，后面的不定式短語(yǔ)作真正的主語(yǔ)。


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