She is a crazy fan of this singer. ________ she listens to his songs hundreds of times, she will never get tired.
A.If |
B.Unless . |
C.As long as . |
D.Even if |
Everyone in our class was working hard and doing what we could ________ a good university.
A.enter |
B.to enter |
C.entering |
D.entered |
QQ, ________ you can chat with your friends, makes communication easy.
A.how |
B.where |
C.that |
D.which |
I was watching the news on TV ________ the power went off.
A.when |
B.as |
C.while |
D.until . |
—How long will it be ________ the 30th Olympic Games is held in London?
—It won't be two years, I think.
A.when |
B.that |
C.before |
D.since |
When first ________ to the market, the computer software . was not a success due to its complexity in operation.
A.introducing |
B.being introduced |
C.introduced |
D.to be introduced |