单选题After he retired from office, Rogers ______ painting for a while, but soon lost interest. A. took up B. save up C. kept up D. drew up

单选题Let me tell you what to do next __________ I forget.

单选题His ears are highly sensitive ______ any unusual sound in the machine.

单选题I ______ on the door for ten minutes now without an answer.

单选题If it were only necessary to decide whether to teach elementary science to everyone on a mass basis or to find the gifted few and take them as far as they can go, our task would be fairly simple. The public school system, however, has no such choice, for the job must be carried on at the same time. Because we depend so heavily upon science and technology for our progress, we must produce specialists in many fields. Because we live in a democratic nation, whose citizens make policies for the nation, large numbers of us must be educated to understand, to support, and when necessary, to judge the work of experts. The public school must educate both producers and users of scientific services. In education, there should be a good balance between the branches of knowledge that contribute to effective thinking and wise judgment. Such balance is defeated by too much emphasis on any one field. The question of balance involves not only the relation of the natural sciences, the social sciences, and the arts but also relative emphases among the natural sciences themselves. Similarly, we must have a balance between current and classical knowledge. The attention of the public is continually drawn to new possibilities in scientific fields and the discovery of new knowledge; these should not be allowed to turn our attention away from the sound, established materials that form the basis of courses for beginners.

单选题If we don't book tickets, we ______ watch the football game.

单选题He was ______ enough to understand my questions from the gestures I made.

单选题Speaker A: Have you had any trouble finding a quiet place to study in? Speaker B: ______. A. Not so sure B. Not so far C. Not really D. Not so bad

单选题Breakfast in the school canteen usually ______ egg, bread, and milk

单选题Why isn't the word "sir" commonly used in Britain?

单选题Soon he got ______ his difficulties and succeeded. A. across B. away C. over D. through

单选题Tracy: Excuse me. I wonder if you could help me with this suitcase. I just want to put it on the top rack. Robert: ______

单选题Jim was absent from school for the whole week ______ a bad cold.

单选题Little rain and higher temperature have ______ the shortage of water in these poor areas. A. eased B. worsened C. excluded D. improved

单选题You never told me you have seen the film, ______.

单选题Mori: I"m pleased to meet you here. Kaco: ______.

单选题The ______ stuck on the envelope says "By Air".

单选题-Excuse me. sir. Would you please tell me how to get to Beijing Hotel? - _____ Would you like to take a bus or walk?