( )1. The woman _ is in red is his mother.A. whom B. who C. whose D. which( )2. We saw a film _ was about an old story.A. when B. who C. that D. where( )3. I only eat food _ is healthyA. that B. which C. where D. whose ( )4. I like singers _ different kinds of music.A. who plays B. who play C. who can plays D. whom plays5.Which do you _ (更喜欢),classical music or pop music? 6.Beethoven was one of the most famous _(音乐家) in the world.