At the beginning of class, the noise of desks could be heard outside the classroom.
| A．opened and closed |
| B．to be opened and closed |
| C．being opened and closed |
| D．to open and close |
I have worked with him for some time and have found that he is ________ than Jim.
| A．more efficiently a worker |
| B．a more efficient worker |
| C．more an efficient worker |
| D．a worker more efficient |
There are plenty of jobs ________ in the western part of the country.
| A．present | B．available |
| C．precious | D．convenient |
No one expected house prices to fall，but ________ that’s exactly what happened.
| A．moreover | B．thus |
| C．anyway | D．however |
Let’s go to give the stranger a hand.________he’s got into some trouble.
| A．Occasionally | B．Obviously |
| C．Suddenly | D．Surprisingly |
—How is your plan getting along?
—I can’t carry on ________ any longer.Someone must help me.
| A．single | B．simply |
| C．alone | D．lonely |