31．“How could you lose so much money?” Charlie asked his wife, eyeing her angrily from________the kitchen table.
| A．at | B．across | C．through | D．on |
The wreckage of something like a jet plain discovered in the heart of the desert is believed ______ a UFO and _______down for reasons still mysterious.
| A．to be; have fallen | B．to have been; to have fallen |
| C．to be; to fall | D．having been; having fallen |
The goods on this counter ____ at a discount of 25%, like the typewriters, television receivers, dustbins, etc.
| A．sell | B．sells | C．is sold | D．are sold |
It is every citizen’s duty to go out to ______ the snow on the street______ it stops falling so as to make it convenient for traffic to pass. .
| A．sweep up; the instant | B．clear up; the moment |
| C．clean up; immediately | D．whirled up; directly |
The most important _____ of the job as a typist is to be able to type fast and _______.
| A．aspect; accurate | B．way; exactly |
| C．aspect; accurately | D．part; precisely |
The local government has again _______ its words not to swallow the arable land for town building and the farmers can do nothing but swallow it. Which of the following is NOT OK?
| A．swallowed | B．eaten | C．broken | D．let down |