----How many students are there in your class?---- __________ number of the students in our class __________ 40.
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? -_______.
Our neighbor Mr. Smith used to_______ money but he never gave it back.