单项选择题
A. so B. as much C. him D. it
（）the temperature going down so quickly, I don't think ...
单项选择题（）the temperature going down so quickly, I don't think we are able to go on with our experiment.
A. For B. By C. From D. With
To get into the habit of smoking means（）one's own life ...
单项选择题To get into the habit of smoking means（）one's own life short.
A. make B. making C. to make D. made
