—The cars give off a great deal of waste gas in the street.
—Yes, But I’m sure something will be done to air pollution.
| A．reduce | B．remove | C．collect | D．warn |
Seldom______computer games ever since he entered college.
| A．did he play | B．has he played | C．he played | D．he has played |
People may have different opinions about Karen, but I admire her.
______, she is a great musician.
| A．After all | B．As a result | C．In other words | D．As usual |
We must take measures to protect the endangered wildlife ______ it
is too late.
| A．before | B．as long as | C．now that | D．unless |
He was in the mountain for a year. He felt as if he was ______
from the outside world.
| A．cut out | B．cut off | C．cut up | D．cut through |
The evening news comes on at seven o’clock and ______ only thirty
minutes.
| A．keeps | B．continues | C．lasts | D．finishes |