Even the experienced doctors dare not carry out the operation because of the of failure.
| A．future |
| B．pressure |
| C．worry |
| D．risk |
It was decades ago ________ I was in my teens ________ the Chinese government decided to reform the social economic system.
| A．when; when | B．that; which | C．when; that | D．before; that |
She tried hard to keep calm in face of the students, but the sweat on her forehead _____ her ____.
| A．gave; away | B．tuned; down | C．showed; out | D．shut; off |
After retirement, Mr. Smith ______ painting, which he had always loved but had not had time for.
| A．took up | B．got up | C．help up | D．looked up |
You’d better ______ some hot water into the bottle in case the teacools down.
| A．add | B．fill | C．fill in | D．put |
Thomas Alva Edison didn’t “invent” the light bulb (灯泡), but rather he ______ a 50 –year –old idea, which is not well –known.
| A．improved upon | B．take down | C．put up | D．break away |