单选题The boys looked for the ball for a while in the playground, but finally gave are went home. A. up B. out C. away D. off

单选题What'sthemeaningof"anativeofL6ndon"?

单选题A preschool teacher teaches the children ______.

单选题I checked all my answers __________ my teacher had suggested.

单选题To fight a noise by making more noise sounds strange, but that"s exactly what motor engineers are doing in Germany and some other countries. Car makers" research and development laboratories have already proved that mixing more noise with the help of loudspeakers can reduce the unwanted noise. Physicists have known about the technique for a long time. Sound is made up of pressure waves in the air. If two sound waves of the same frequency (频率) mix so that the highest point of one wave happens at the same time as the lowest point of the other wave, the result is no sound. Therefore, by producing a perfect copy of the noise and delaying it by half a wave cycle (周期), we can kill the unwanted noise. Using this technique many carmakers are racing to develop noise-killing systems (系统) both inside and outside the cars. Another good thing about the use of noise-killing systems is that it saves the need for a silencer; this not only reduces the weight of a car, but also makes the motor burn less fuel and work better. Some engineers believe that the noise-killing system will be used in most cars within a few years. But the carmakers haven"t decided if they will carry it into production because it would add several hundred dollars to the cost of their cars.

单选题Howmuchisalargebottleofaspirin?

单选题--I didn't do well in the English test. How about you?--______.

单选题What was the woman planning to do today?

单选题She made the request that all the problems of pollutions ______ at the next meeting.

单选题Whyisthemannervous?

单选题Howdoesthewomanfeelatthebeginningoftheconversation?A.Angry.B.Surprised.C.Sad.

单选题A murder would most likely occur ______.

单选题Who seemed to have taken the MP3 player?

单选题1. Needed: Full-time secretary position open Applicants (申请人) should have at least 2 years' experience. Apply in person at United Business Ltd. , 17 Browning Street.2. Are you looking for a part-time job? We require 3 part-time shop assistants to work during the evening. No experience required. Applicants should be between 18 and 26. Call 366-76564 for more information.3. Computer trained secretaries Do you have experience working with computers? Would you like a full-time position working in an exciting new company? If your answer is yes, give us a call at 457-896754.4. Teacher Needed Tommy's Kindergarten needs 2 teachers to help with classes from 9 a.m. to 3 p.m. Applicants should have proper licenses (许可证). For more information, visit Tommy's Kindergarten in No. 56, Leicester Square.5. University positions open The University of Cumberland is looking for 4 teaching assistants to help with homework correction. Applicants should have a degree in one of the following: Political Science, Religion, Economics or History. Please contact (与…联系) the University of Cumberland for more information.

单选题Why does the man want to eat in?

单选题听第7段对话，回答第8～10题。

单选题Never have we had ______ weather before. A. such a fine B. such fine C. so fine D. so fine a