When I arrived home after a hard day at work, my wife____

单选题When I arrived home after a hard day at work, my wife_____.

A．was sleeping
B．had been sleeping
C．slept
D．has been sleeping

参考答案A

解析:【译文】当我辛苦工作一天后回到家时，我的妻子正在睡觉。
【考点】时态
【解析】根据题意，可以判断应该用过去进行时，故选A。

单选题 Ifyou can' t put your PC______________good use, sell it to those who really needit.

A．into
B．of
C．to
D．with

单选题 Evidence came up_________________specific sounds are recognized by babies asyoung as 6 months old.

A．what
B．which
C．that
D．whose

单选题 I' mstill unable to make myself _________________in the discussion, which worriesme a lot.

A．to be understood
B．understanding
C．understood
D．understand