【题目】Fred had to have his car repaired in a garage because it _____ seriously．
A．damagedB．had been damaged
C．was being damagedD．had damaged
在线课程【答案】B
【解析】句意：Fred的让他的车在车库里修理因为它严重地受损了。这句中有两个动作，一个是修车（用一般过去时），另一个是车被损坏了（这个动作应该发生在修车前），故时态应该比修车的在往后退一级，所以用过去完成时。