—Why not get your mother a scarf for her birthday? —_______
Smoking is not allowed in our school, so it may be a good chance for our math teacher to_______ smoking.
She looked at the professor and wondered where she_______ him.
- How often do you play basketball? -_______. I am too busy to relax myself.
It worries our government a lot that the air in our city is _______than it used to be.
- You are always talking about your pet dog. Could you tell me what it is like? -_______.