—Where are _____? —They are on the chair. A.Tony's books B.Tony's book C.Tony books
It’s grandma’s birthday _______ Sunday.A. in B. on
I’ll try my best _____ help you.A. on B. to
What’s the matter ________ you?A. to B. with
I prefer ______ a comedy.A. to see B. see
Come to my flat _______ 9:00 ________ the morning.A. in… at B. at … in