Would you like to eat up all the food on that plate? ——Sure,but that is not _______. I have already eaten all my food up.

Betty is in China _____ her father and mother. [ ]

Please tell me what happened you. [ ]

More and more parks ________in Mentougou in five years.

Smoking is not allowed in our school, so it may be a good chance for our math teacher to_______ smoking.