题目

1．The United States of America  ________ one of the most developed countries in the world. 2．Every means  ________ tried, but in vain. 3．Not only my sister but also I  ________ good at painting.Both of us  ________ good painters. 4．Going to bed early  ________ a good habit. 5．I, who  ________ your teacher, will try my best to help you out. 6．“All  ________ present and all  ________ going on well，” the chairman said. 7．The old  ________ taken good care of in our country. 8．An iron and steel works, with some other factories  ________ to be built here. 9．The number of people invited  ________ fifty, but a number of them  ________ absent for different reasons yesterday. 10．I as well as they  ________ ready to help you. 11．What we need ________ enough water, but what they need  ________ houses. 12．Her family  ________ larger than mine and her family  ________watching TV now. 13．There  ________ a big table and six chairs in the dining room. 14．The rest of food  ________ (leave) for the rest of the students who  ________ (have) gone to the library. 15．We need one of the students who  ________ at the meeting.He is the only one of the students who  ________ English fluently.(speak) 16．Many a student in our class ________ pop music while many students in their class  ________ classic music.(like) 17．Each of them  ________ Chinese food.They each  ________ Chinese food.(enjoy) 18．The worker and writer referred to ________ (go) to write a comedy next year. 19．This kind of cartoons  ________ well in the bookstore while cartoons of that kind  ________ badly.(sell) 20．No boy and no girl ________ (prevent) by the heavy rain from taking part in the activity. 21．On the wall ________ (hang) two large portraits. 22．Nobody but Jane and Mary ________ (know) the secret. 23．Not only I but also Jane and Mary ________ tired of having one examination after another. 24．A library with five thousand books ________ offered to the nation as a gift. 25．When and where to build the new factory ________ not been decided yet. 26．E­mail, as well as telephones, ________ playing an important part in daily communication. 答案：1.is　2.has been　3.am; are　4.is　5.am 6．are; is　7.are　8.is　9.was; were　10.am 11．is; are　12.is; are　13.is　14.is left; have 15．speak; speaks　16.likes; like　17.enjoys; enjoy 18．is going　19.sells; sell　20.was prevented 21．hang　22.knows　23.are　24.is　25.has　26.is

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