以用烟头靠近CO报警器的探头来试验灵敏度。（）
参考答案：错
I want______a movie after work.[ ]
A. to do
B. to go
C. to go to
用所给单词的正确形式填空
1. Those poor children need somewhere ______ (live).
2. You should protect the children from ______ (catch) cold.
3. How long does it take you ______ (walk) 50 meters?
4. That easy chair takes up too much ______ (room).
5. Something serious is ______ (happen) to me.
sy chair takes up too much ______ (room).