7．Adjusting to（適應(yīng)） the tropical heat was more difficult than they had expected．（adjust）

6．-Is Bob still performing？
-I'm afraid not．He is saidto have left（離開）the stage already as he has become an official．（leave）

5．He looks sleepy．He musthave stayed up（熬夜了）last night，writing the essay．（stay）

4．The official song of the 2010 World Cup in South Africa titled Waka Waka features many musical elements thatdate back to/from（追溯到）the ancient times．（date）

3．Expo 2010 Shanghai Chinais being held（在召開）on both banks of the Huangpu River in the city of Shanghai，China，from May 1 to October 31，2010．（hold）

2．Representatives attending Copenhagen Conference recommended thatstrict measures （should） be taken（采取嚴(yán)厲措施） to reduce carbon emission．（take）

1．It is possible that the King of Stonehenge was linked to the stones：hemay have had a hand（很可能參與了） in planning the monument，or in helping transport and pull up the stones．（hand）

20．His younger sister teaches in a secondary school，in front ofwhich flows a small river（流淌著一條小河）．（flow）

19．The more ways we have of looking at a problem，the more likely it is（越有可能）that we can find a solution．（likely）

18．假定英語課上老師要求同桌之間交換修改作文，請你修改你同桌寫的以下作文．文中共有10處語言錯誤，每句中最多有兩處．錯誤涉及一個單詞的增加、刪除或修改．
增加：在缺詞處加一個漏詞符號（∧），并在其下面寫出該加的詞．
刪除：把多余的詞用斜線（﹨）劃掉．
修改：在錯的詞下劃一橫線（__ ），并在該詞下面寫出修改的詞．
注意：1．每處錯誤及修改均僅限一詞；
2．只允許修改10處，多者（從第11處起）不計分．
It is reported，some needy students receive financial support from some kind people but never express our thanks．Personally，I think they are right．Though the helpers don't expect any reward in turn，but it's necessary and good manner to say"Thank you"．Besides，that is a basic social skill to express ourselves in the modern society．Maybe some of them did feel thankful．It is only because they are afraid of being looked down upon they remain silently．But I just want to say that being poor for the moment doesn't mean you will be poor forever．