On Sundays there were a lot of children playing in the park, _______ parents sat together joking.
| A．their | B．whose | C．which | D．that |
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 |
----- Must I turn off the gas after cooking?
----- Of course. You can never be ______ careful with that.
| A．enough | B．too | C．so | D．very |