The doctor did what he could_________ the dying man.
A. save B. to save C. saved D. saving
---Where does John live?
---He lives on ______ floor but he doesn’t use a lift to go up and down.
A. nine B. the ninth C. the nineth D. a ninth
—What bad weather!
—Yes. If it _______raining, the fields will be covered with water soon.
A. go on B. goes on C. will go D. went on
－I wonder ____________. －Zebras.
A. what do they call these animals B. why they call these animals
C. What they call these animals D. why do they call these animals
－Why didn't you go to the cinema with us this afternoon, Jim?
－Because I ______ at the station for my uncle from Beijing at that time.
A. was waiting B. have waited C. am waiting D. will wait
－ I need something for cutting the paper.
－ Oh, you want a knife? OK, I'll get ______ for you.
A. it B. that C. this D. one
