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 |
When you are _______ about which button to press on the complicated machine, you can either read the user’s guide for guidance or fax us for specific instruction. Don’t ______ the trial-and-error method.
|
A．insure; do |
B．ensure; make |
C．uncertain; try |
D．unsure; touch |
