When the old man to walk back to his house, the sun itself behind the mountain. A．started; had already hiddenB．was starting; hidC．had started; had already hiddenD．had started; was hiding 题目和参考答案——青夏教育精英家教网—

题目内容

When the old man ______ to walk back to his house, the sun ______ itself behind the mountain.

A．started; had already hidden	B．was starting; hid
C．had started; had already hidden	D．had started; was hiding

解析试题分析：考察时态。句意：当老人开始走回自己的房子的时候，太阳已经躲在大山后面了。根据句意可知太阳落山是先发生的事情，然后老人才回家。要注意动词的先后关系，故A正确。
考点：考察时态

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