Jumping out of _______ train running at a speed of 200 kilometers per hour is quite _____ dangerous practice.
People generally think that smoking is a bad __________ .
, they didn’t do well in helping each other with their study.
—How did you find your missing key? —.
You didn’t bother me. , I like your company.
The manager meant ____ the workers that being 5 minutes late meant ____ the company.