题目内容
When the old man_____to walk back to his house,the sun____itself behind the mountain.
| A.was starting;hid | B.had started;had already hidden |
| C.had started;was hiding | D.started;had already hidden |
D
根据句意从句应用一般过去时态,主句动作发生在从句动作前,所以使用过去完成时态。故此题选D。
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