Mrs Brown was much disappointed to see the mobile phone she had had______the week before went wrong again.
A.it
B.it repaired
C.repaired
D.to be repaired
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C解析此题考查考生对句子结构的分析理解。此题句型为have sth done, she had had repaired为定语从句，修饰the mobile phone。选项B迷惑性极大，若选B，则it为多余成分。