It’s hard for me to go to sleep. —Try to ______the amount of coffee you drink during the day.

the new program 3+X if your dream tobe a doctor , you must takechemistry as elective course

They ______ on the program for almost one week before I joined them, but still no good results _______ so far

Tom _______ the TV set for $500，which was much cheaper than he had expected．

I’m sorry I can’t go with you. I have to go to Shenzhen on business.— ________. Maybe next time.