30. The No. 5 subway line, ______in October, 2007, has greatly improved the traffic conditions in Beijing.
He never goes over what he has learned. I wonder how he to get such a good result in the exam.
is no possibility Bob can win the first prize in the match.
Could it be in the restaurantyou had dinner with me yesterday you left behind your wallet?
Remember to put the books before leaving the room.
They didn’t think I couldthat expensive car, but in fact, I was quite able to.