单选题
The school board is made up of parents who ________ to make decisions about school affairs.
A、
had been elected
B、
had elected
C、
have been elected
D、
have elected
【正确答案】
C
【答案解析】
题干的意思是：“这个学校董事会是由已经当选，并为学校事务做决定的父母组成的”。父母是被选上，用被动语态，排除选项B，D。再根据关键信息is made up of用的是现在时，可知选举一事对现在有影响，所以用现在完成时。
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