单项选择 1．The result showed that the light of Kindle was similar to that of the print book, so it was unlikely that reading on such a non-light-emitting device negative effects on sleep. A．reflected...would have B．reflecting...had C．reflected...had D．reflecting…would have 2．Not only _____, but also he kept it. A．has he made a promise B．he made a promise C．did he make a promise D．he had made a promise 3．WeChat(微信), as well as telephones _____ an important part in our daily communication. A．are playing B．is playing C．have played D．play 4．Because Venus lost the water it originally had, most of its carbon dioxide _____ in its atmosphere, causing the planet to become very warm. A．A．remained B．B．was remained C．C． had remained D．D．had been remained 5．It seems that oil _____ from this pipe for some time. We’ll have to take the machine apart to put it right. A．had leaked B．is leaking C．would have leaked D．has been leaking 6．That was the first time I_____ face to face with the president. A．am talking B．talk C．have talked D．had talked 7．In the past decades, some number plates _____ extremely valuable, particularly those that spell out words. A．had become B．have become C．has become D．became 8．Jane can’t attend the meeting at 3 o’clock this afternoon because she _____ a class at that time. A．have taught B．will teach C．will be teaching D．is teaching 9．Unless we _____ more money, the project will stop. A．find B．is found C．found D．was found 10．They are _____having a holiday in Florida and will be back next month. A．extremely B．occasionally C．currently D．originally 11．You can’t help wondering how hard it _____ for the people then to put all those rocks into place. A．is B．has been C．was D．will be 12．Tom, together with his friends , _____going to have a picnic this weekend. A．is B．are C．was D．were 13．With the development of science and technology, robot cooks _____ in most families in the future. A．appear B．will appear C．appeared D．have appeared 14．By the end of last year, great changes _____ in my hometown with the development of tourism under the leadership of the government. A．took place B．have taken place C．are taking place D．had taken place 15．So far, the coach as well as all the players _____ their confidence. A．has lost B．have lost C．lost D．is losing 16．Although he only began his work 3 months ago, he is now a teacher that _____ respect from parents and students. A．has gained B．are gained C．have gained D．is gained 17．_____ the watch _____ yet I badly need it. A．Does; repair B．Are; being repaired C．Is; being repaired D．Has; been repaired 18．Yesterday Mr. Smith spoke at the meeting in place of the manager, who_____ a more important meeting. A．had attended B．will be attending C．has attended D．was attending 19．Shopping centers around the world _____ events and activities to celebrate Chinese Spring Festival for years. A．organized B．were organized C．have been ... ...
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