单选题The new aircraft ______ its tests very well.

单选题Howmuchdotheyhavebetweenthem?

单选题This teacher is not worthy ______ the title for model teacher.[A] in[B] at[C] of[D] with

单选题Americans smoke six thousand million cigarettes every year, that is, every person smokes about 4,195 cigarettes a year in the country of 18 years of age or more. It has been calculated that 51% of American men smoke while 34% of American women do so. Since 1939, scientific studies have shown that smoking does great harm to one's health and it will shorten one's life. Cigarette smoking is believed, by most research workers in the field, a very important cause in the development of the cancer of the lungs and the cancer of the throat and is believed to have much to do with some other kinds of cancers. Cigarette smokers suffer from the illness of the heart more often than those who don't smoke. But strange, yet true, women are thought to be less affected, because when women smoke, they usually don't breathe in the smoke so deeply. Most of doctors and researchers say, "Give up smoking. If you don't smoke--don't start!" Filters (过滤嘴) are required now to make smoking a bit safer, but they can only reduce, not get rid of, its poison. But there are still a number of doctors and research workers who are less sure of the effect of cigarette smoking on health. They believe that the cancers of the lungs, the throat and so on may also be caused by air pollution, or chemical poison that is now being used by farmers in large quantities to destroy plant pests and small animals.

单选题Chaplin is regarded as king of comedy mainly because ______.

单选题What kind of room is left on the 7th floor?

单选题He left school after taking six C-levels because ______.

单选题One new model has ______ been developed for business people. A.late B.lately C.early D.recently

单选题—You've annoyed your husband because the dinner was badly cooked. —But I ______ to.[A] don't mean[B] didn't mean[C] haven't meant[D] wouldn't mean

单选题Given these conditions, there will not be ______ room left in one's brain for ______ rational (理智的) thought. A. a; the B. /; a C. the; / D. /; /

单选题WherearePatrickandDiane?A.Inadisco.B.Inacinema.C.Inatheatre.

单选题______ they will send us an invitation is not yet known, ______ we hope they will. A. If; but B. That; so C. When; yet D. Whether; but

单选题David won’t be home until next month. Oh, I ____ too soon - here he is now!

单选题—Why do you drink so much coffee? —Well, ______ it doesn't keep me awake at night, I see no harm in it.

单选题听下面一段对话，回答第13至第16题。

单选题—His furniture has been painted white. —______.