单选题

单选题I didn't manage to work out the problem ______ the teacher had explained how.

单选题Dr. Griffiths's research helps you find out ________.

单选题The passage recommends those dealing with computers to ______.

单选题

单选题—Sue likes playing the piano, but she can't play it well.—_________.

单选题WhydidBettycometothehotel?A.Becauseshestayedinthehotel.B.Becauseshehopedtogetajobthere.C.Becauseshetookacoursethere.

单选题Whatisthispassageabout?

单选题What are they talking about?

单选题Time is money! We should ______ our time.

单选题We found that bar at last. I didn't have to ask again, for there it was in big red neon letters over the window—Star Bar. There were some iron tables outside with plastic chairs around them. A few people sat around, looking at a portable television set that someone had brought out of the bar. They were all in thin summer dresses or short shirts; even at that late hour it was stiffing. Two thin dogs lay under one of the tables with their tongues out, and some of the women were fanning themselves unenthusiastically (无精打采地) with magazines. "He's not here," I said, after a quick look around. The television was speaking out an advertisement for a detergent (洗衣粉), and the people sitting round had their eyes glued to the picture of a woman proudly showing how White her husband's underwear was after having been washed. They took no notice of us at all. "Well, what did you expect?" replied Fergus, yawning (打哈欠). "It's only half past nine, and he said he would be here at nine. You ought to know Graig by this time. He'll turn up sometime after ten./

单选题It was not until 1920 ______ regular radio broadcasts began. A.when B.which C.that D.since

单选题Millions of people are enrolled in evening adult education programs across America. Community colleges have 1 popular and their enrollments have increased 2 Larger universities are offering 3 in the evening for adult students. 4 , the demand. 5 more education is being 6 . One reason for this is 7 many people are changing their professions. They are looking for different 8 . 9 reason is that repair costs have 10 . Adults 11 courses like plumbing and electric repair. This way they hope that the high 12 for repairs can be avoided. New and advanced technology is the most important reason for the rise in 13 education. Engineers and teachers and businessmen are taking adult education classes. They have found that more education is 14 to do their jobs 15 . 16 course are offered. Many adult students take computer and business courses. Foreign languages, accounting and communication courses are also popular. Some adult students 17 classes to earn degrees, others take courses 18 the knowledge and skills 19 they can receive. The lives of many people have been enriched 20 adult education.

单选题"Social mammals" in the second paragraph means "______".

单选题I enjoyed playing football very much last term. — ______.

单选题She had to undergo psychiatric treatment as she was mentally ______.