I exercise every day, so I am _____ healthy.
Our teachers always tell us ________ across the street when the traffic light is red. A. to go B. don’t go C to not go D. not to go
Who is the man over there? Is it Mr. Wu? — It ________ him, but I am not quite sure.
I didn’t see Tom last night. Where was he?--- He______ an interesting book at home.
Nobody can live________ fresh air and clean water.
My brother is honest boy, he never tells a lie.