The most impressive sight in China，one of the wonders of the world，_____ the Great Wall.
| A．is | B．are | C．was | D．were |
I’m sorry，the sales manager is not________.He is on the telephone at the moment.
| A．reasonable | B．suitable | C．valuable | D．Available |
I prefer to be ______ at a hotel with free room service and access to the Internet.
| A．put up | B．set up | C．made up | D．picked up |
I’m living in the apartment nearby.Come and see me whenever________.
| A．it is convenient | B．you are convenient |
| C．you have convenience | D．there is convenience |
___ the room,the nurse found the tape-recorder ___.
| A．Entering;stealing | B．Entering;gone |
| C．To have entered; being stolen | D．Having entered;to be stolen |
We can never forget the days _______the two astronauts in spaceship worked together and the days _______we spent together.
| A．which; when | B．when; which | C．what; that | D．on which; when |