My mother asks us _______ fingernails long.A. keep B. to keep C. not to keep
In the last two years the workers______ many tall building.
_____ number of the students is 4,0000 , much more than last year.
---Tom had better stay at home, _____ he?----Yes, but he’d better ____ turn the TV on.
This is the first book _______ my cousin bought me.
He is ______ that he does everything very well.