l.lf you are not definitely accepted or _____ on the spot, ask:"When may I expect to hear the result of this interview?"

　　A. tumed out                    B. turned on

　　C. turned down                  D. turned away

　　2. Scientists doubt whether it' s____ to regulate one' s biological clock by drinking.

　　A. feasible                     B. incredible

　　C. fashionable                  D. valuable

　　3. You'd better leave things ____ if you don' t know how to deal with them.

　　A. lonely                       B. only

　　C. lone                         D. alone

　　4. The professor asked a question,and David ____ a good answer.

　　A. put up with                  B. stood up for

　　C. came up with                 D.looked down upon

　　5. We ____ go out to restaurants, but mostly we eat at home.

　　A． occasionally                B. relatively

　　C. continually                  D.absolutely .