He didn't put the things ______ they belonged, for ______ reason he was blamed.[ ]

A. which; that

B. what; this      

C. that; whose    

D. where; which

根据中文意思完成句子，每空一词。

1.你父母不在家时你要好好照顾妹妹。

   You must                              your sister when your parents are away.

2.大卫解释了他上学迟到的原因。

   David               he was late for school.

3.我明白了老师的意思。

   I               my teacher meant.

4.你能告诉我明天我们什么时候见面吗？

   Can you tell me                              tomorrow？

5.爸爸看报纸的时候我在做作业。

   I was doing my homework       my father                     ．