—We _____ talk loudly when we see the sign “Be quiet” on the wall.—Yes, you are right. We should be polite in public.
These shoes aren’t comfortable. You __________ wear them.
I would rather _____ books than ______ shopping.
He wasn’t _______ with the knife, and cut himself. A.careful enough B.enough careful C.enough carefully
________ people used the computer thirty years ago, but now it’s very popular.
How did you______the weekend?