A Colorado woman said that her iPhone 4 fire while charging overnight.A. had caughtB. has

问题补充：

A Colorado woman said that her iPhone 4 fire while charging overnight.

A. had caught

B. has caught fire

C. was catching

D. caught

答案：

A. had caught

B. has caught fire

C. was catching

(答案→)D. caught

解析：考查宾语从句的时态。主句用的是过去时，从句也要用相应的过去时态。句意“一位科罗拉多女性说，晚上充电时她的iPhone4着火了”。这里说的是事实，从句用过去时。catch fire“着火”。故选D。