The police _____ a prisoner.
| A．issearchingfor | B．aresearchingfor | C．issearching | D．aresearchedfor |
（2012辽宁卷）The old couple often take a walk after supper in the park with their pet dog them.
| A．to follow | B． following | C． followed | D． follows |
（2012辽宁卷）This machine is very easy . Anybody can learn to use it in a few minutes.
| A． operating | B． to be operating | C． operated | D． to operate |
_____to work overtime that evening, I missed a wonderful film.
| A．Having been asked | B．To ask | C．Having asked | D．To be asked |
We’re having a meeting in half an hour. The decision ______ at the meeting will in the future of our company.
| A．to be made | B．being made | C．made | D．having been made |
Before you quit your job, ______how your family would feel about your decision.
| A．consider | B．considering | C．to consider | D．considered |