The actor _____ acted in the film Coming Home is very popular.
A. what B. who C. whom
Many old buildings _____ well because they are our national treasures.
A. have protected B. should be protected C. protected
—Have you heard of the Big Ben?
—Of course. It _____ a symbol of UK.
A. regards as B. is regarded as C. is regarded to
When I was walking past his room yesterday evening，I heard him _____ the piano.
A. play B. to play C. playing
—Whose storybook is that?
—It must _____ Jack. I saw him reading it just now.
A. belong to B. belong C. be belonged to
—Excuse me，can you tell me the meaning of this word?
—Sorry，I don't know. You can _____ in my dictionary.
A. look it up B. look up it C. look it for
