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 |