Question

【题目】—I often have hamburgers for lunch.
—You'd better not. It's bad for you ________ too much junk food.
A.eat
B.to eat
C.eating
D.ate

Answer 1

【答案】B
【解析】“It's+形容词+for sb. to do sth.”为固定句式，意为“对某人来说做某事是……的”。句中it为形式主语，后面的动词不定式短语为真正的主语，故选B。