It is widely believed that a good _____ between the two countries is important for the development of both China and the USA.
A. connection B. link C. relation D. relationship
Experts warn that medical waste from hospitals, ifproperly, may contribute to spreading diseases．
| A．not handled | B．not being handled |
| C．not to be handled | D．not having been handled |
—Whyso early? The movie doesn't start till seven．
—I don't want to be at the traffic there．It's terrible during the rush hour．
| A．have you left | B．do you leave |
| C．would you leave | D．are you leaving |
If itthe climate, I would stay here much longer．
| A．is not for | B．had not been fo |
| C．were not for | D．would not be for |
Sinking in the cheers of people, David walked off the stage, tears droppinghe could stop them．
| A．after | B．when | C．until | D．before |
．Days of snowstorms have left the cityunder thick layers of ice and some 50,000 homes without power．
| A．to be trapped | B．trapped |
| C．having trapped | D．being trapped |