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
----- 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
