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

题型：不详难度：来源：

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

答案

A

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。