SARS is an illness that can result in death unless left in time.
—Why didn’t you go to yesterday’s meeting? —I would have but I ______too busy working on the important experiment.
So absorbed_____in her work that she didn’t realize I was behind her.
—How do you like the glasses? —This kind of glasses made by experienced workers________ comfortably.
It is not easy to learn English well, but if you ____.You will succeed in the end.
--- _____ Tracy was in such a hurry ?---I don’t know.She might have been running to catch the bus.