When the old man to walk back to his house, the sun itself behind the mountain.
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When the old man ______ to walk back to hishouse, the sun itself behind the
mountain.
| A.started; had already hidden | B.had started ;had already hidden |
| C.had started; was hiding | D.was starting; hid |
试题答案
【答案】
A
【解析】
试题