are you going to the library?—At eight O’clock.A. What B. Where C. When
( ) Tom often helps people ____ his work . A. on B. at C. in
( ) She ___ great in her uniform . A. look B. looks C. looking
( ) Can ____ guess ? A. your B. his C. you
( ) ______ is he ? A. What B. Who C. When
( ) Look _____ today’s newspaper. A. at B. to C. in