1 . —I drove to Zhuhai for the air show last week.
—Is that ______ you had a few days off?

A．why

B．because

C．where

D．when

2 . He didn’t finish his homework on time. That is________ he was punished by the teacher. （用适当的词填空）

3 . The problem is ________ we can get the things we need. (用适当的词填空)

4 . —I prefer shutting myself in and listening to music all day on Sundays.
—That’s ______ I don’t agree. You should have a more active life.

A．where

B．how

C．when

D．what

5 . Have you found the red mark(记号) on the map? This is ________ Huashan High School lies.

6 . A ship in harbor is safe, but that is not________ ships are built for. (用适当的词填空)

7 . Go and get your coat. It is ______ you left it.

8 . —I prefer shutting myself in and listening to music all day on Sundays.
—That's ________ I don't agree. You should have a more active life.

9 . ________ my dear teacher couldn't understand was ________ fewer and fewer middle school students showed interest in her lessons.

10 . 去拿你的物理书；它就在小卧室你放的那个地方。(表语从句)
Go and get your physics book; it is ____________ ____________ ____________ ____________ in the little bedroom.