Electricity ___ our messengers ,for it carries our messages all over the country.
| A．regards as | B．acts as | C．treats as | D．looks on as |
American Indian ______ about five percent of the U.S. population.
| A．fill up | B．bring up | C．make up | D．set up |
There are plenty of jobs ______ in the western part of the country.
| A．present | B．available | C．precious | D．convenient |
–I’d like some more cheese.
–Sorry, there’s ______ left.
| A．some | B．none | C．a little | D．few |
Yesterday she sold her car, ______ she bought a month ago.
| A．whom | B．where | C．that | D．which |
–What’s that noise?
–Oh, I forgot to tell you. The new machine ______.
| A．was tested | B．will be tested | C．is being tested | D．has been tested |