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.