Some students can’t go to the show the exam this week.A. becauseB. because ofC. ifD. so

问题补充：

Some students can’t go to the show the exam this week.

A. because

B. because of

C. if

D. so

答案：

A. because

(答案→)B. because of

C. if

D. so

解析：根据语境可知此句的含义是这周有些学生因为考试不能去看演出。此题考查的重点就是考查because和because of的区别，因为the exam是短语表示考试，故用B。