If you ______ smoke, please go outside.
A. can B. should C. must D. may
Jim was watching a late night film______ the television went blank.
A. while B. since C. until D. when
- Your e-mail address again? I ______ quite catch it.
- It's Lily@126.com.
A. don't B. didn't C. won't D. wouldn't
Health experts believe that even a little exercise is better than______ at all.
A. none B. little C. no one D. few
- Where is my raincoat?
-I don't have the slightest idea.______ the room?
A. Did you check B. Do you check
C. Have you checked D. Are you checking
Everyone tells me I'm a good speaker, ______ I really don't like speaking in public.
A．and B．but C．so D. or
