The missing boy was last seen __________ near the lake.
A. playing B. to play C. to playing D. played
The seriously __________ people in the car crash were taken to hospital to be treated.
A. injuring B. wounded C. hurt D. injured
More TV programs, according to government officials, will be produced _____ people’s concern over food safety.
A. to raise B. raising C. to have raised D. having raised
Sam________some knowledge of the computer just by watching others working on it.
A．brought up B．looked up C．picked up D．set up
假如你是李华，你的英国笔友Jack发邮件请你介绍一下中国的传统节日——清明节。请根据以下要点，给他回一封邮件。
1．清明节在每年的四月五日前后； 2．人们在清明节要扫墓祭祖；
3．正值万物复苏之际，人们可以踏青春游，享受假期。
注意：1).词数：100左右; 清明节 the Qingming Festival
墓地 grave sites
2).可以适当增加细节，以使行文连贯。
假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处，每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。
删除：把多余的词用斜线(＼)划掉。
修改：在错的词下画一横线，并在该词下面写出修改后的词。
注意：1. 每处错误及其修改均限一词；2. 只允许修改10处，多者(从第11处起)不计分。
As is well-known that birds are our friends. But the large number of birds have been killed for food. The other day I was walking in the woods while a shot was heard. Hearing the shot, the bird in the trees flew to all directions. A bird was injured badly and looked sadly. Finding the bird injured, so I decided to take it home. At home I take good care of it. When it recovered, I returned itself to the woods. I hope something should be done to prevent birds from killed.
