Question

【题目】-Jeff is shy, so it's difficult for him__________ friends.

-He should try to change.

A. made B. making C. to make D. makes

Answer 1

【答案】C

【解析】

句意：-杰夫很害羞，所以他很难交朋友。-他应该努力改变。make friends交朋友。A. made过去式或过去分词；B. making现在分词或动名词；C. to make动词不定式；D. makes动词三单。本句是国定句型It’s+形容词+for sb. +to do sth., 其中动词不定式在句中作正真的主语，it为形式主语。故选：C。