1.Here came___word that Obama was elected___president of the United States.
A.a;the B./;the C.the;/ D./;/
2.With more and more babies being born every year,we have little room___to live in and little food to eat.
A.remained B.left C.remaining D.leaving
3.Having the highest marks in his class,___.
A.the college offered him a scholarship
B. a scholarship was offered to him by .the college
C. he was offered a scholarship
D. a college scholarship was offered
4.The developing countries have a long way to go to solve a variety of problems___nature and profits.
A.concerned B. concerning C. concerned ahout D. concerning ahout
5.Examinations compositions,together with most business letters and government raports,are the main situations___formal language is used.
A.for which B.on which C.of which D.in which

1Ｄ word在这里是不可数名词，相当于mews,president作补语时不加冠词。
2Ｂ　remain强调与原来一样“保持”，leave“剩下”。
3Ｃ　句子的主语必须和状语的逻辑主语一致。
4Ｂ　concerning“关于”。
5Ｄ　in which等于in the situation。