单选题Dress warmly, ______ you will catch cold.

单选题If you smoke—particularly cigarettes—you are far more likely than a non—smoker to suffer or die from several major diseases—notably lung cancer. One smoker in four dies prematurely (过早地) because of his smoking. The risk of dying for a heavy smoker (between the ages of 35 and 55) is roughly equal to the risk run by a non—smoker 113 years older. Cigarette smoking—and to a lesser degree pipe and cigar smoking—may aggravate(使恶化) or be partly responsible for the development of a wide variety of other diseases ,which include cancers of the mouth and throat ,peptic ulcers (胃溃疡), and loss of teeth. Women who smoke during pregnancy produce babies on average about 5 to 8 ounces lighter than those who don"t. Take lung cancer for example: Britain"s lung cancer figures are the highest in the world, and rising. Ninety people die every day, 33, 000 in 1969. Almost all these deaths can attributed directly to tobacco smoking. The prospects of a cure for lung cancer are, at present, remote, and it is impossible to estimate when, if ever, someone will find one. You would be foolish to rely on someone finding a cure before you needed it. One man in eight who dies between the ages of 35 and 64 is kill ed by lung cancer. The figures for women in this age group are lower, about 1 in 20. This is partly because women smoke less, and have not smoked as long. But the figures are still very high.

单选题While I was waiting for her, I killed time ______ looking in the show windows.

单选题The train willfrom Platform 2 at 3:45 on Tuesday morning.

单选题Fast- food restaurants are ______

单选题We _____ so much – three dishes and a mixed salad would have been enough for us.

单选题______ tomorrow, she would get there on Sunday.

单选题It is so heavy that it can be lifted with our ______ efforts.

单选题I respect Oprah"s opinion, but I would also like her to respect ______.

单选题In 1890 there were many American cities and towns where part of a day's school instruction was conducted in language ____ English.

单选题(If) traffic problems are not solved soon, (driving) (in) cities (becomes) impossible.

单选题His unhappy childhood ______ his bad temper.

单选题Neighbor: Hi. You said that you might need some help with preparing dinner. What would you like me to do? Hostess: ______I really appreciate it. First, could you peel the vegetables? I've put them all in the sink and there's a peeler.

单选题The army put up a strong ______ to the enemy. A. rebellion B. attack C. resistance D. defense

单选题“Perhaps you should go home now.” “No, I __________ on staying here for a while　　longer.”

单选题______ the room than the telephone rang once more. A. Hardly when he entered B. Hardly he entered C. No sooner he had entered D. No sooner had he entered

单选题Whatever you say, I don't believe he would be ______ refuse to help me.

单选题David left ______ raincoat in the room and went out.

单选题He abandoned a career that______to his becoming one of the most influential people in the world. A. could have led B. would lead C. should have led D. must lead

单选题It is no longer a problem______the poor children in this district can go to school.