题目内容
If I ________ the electric heater, the house would not have ________.
[ ]
A.turned off:caught a fire
B.had turned on:caught fire
C.turned on:caught a fire
D.had turned off:caught fire
答案:D
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题目内容
If I ________ the electric heater, the house would not have ________.
A.turned off:caught a fire
B.had turned on:caught fire
C.turned on:caught a fire
D.had turned off:caught fire