Question

【题目】The boy missed his bus ________ playing games with his friends.

A. because B. because of

C. so D. if

Answer 1

【答案】B

【解析】

句意：那男孩因为和朋友玩游戏而误了公共汽车。A. because“因为”，后跟从句；B. because of“因为，由于”，后跟名词、代词或动名词等；C. so因此；D. if如果。A,C,D选项后面必须跟句子，because of为介词短语，后面可跟动名词，故答案为B。