The factory produces half a million pairs of shoes every day, 85% ____ sold abroad.
A. of them are B. of them is C. of which is D. of which are
Shackleton kept his promise ____he would return to Elephant Island ____the crew had been left.
A. which; that B. that; which C. what; where D. that; where
I like taking risks, too. I suppose it ______ in the family.
A. jumps B. walks C. runs D. keeps
Mike spent time with ____native people to gain ____ better understanding of the country.
A. the; a B. the; / C. a; the D. /; a
假设你是李华，你于2014年1月5日搭乘某航空公司航班（the flight BA736），回家后发现遗失了一个行李箱。现在用英文给该航空公司写一封信，请他们帮你寻找。
信件要点包括：
陈述写信原因；
简要描述该行李；
说明该行李的重要性；
期待回复并表示感谢。
注意：
1．词数100左右；
2．可以适当增加细节，以使行文连贯；
3．开头和结尾已为你写好，不计入总词数。
Dear Sir/Madam,
____________________________________________________________________________
____________________________________________________________________________
Yours truly,
Li Hua
假定英语课上老师要求同桌之间交换修改作文，请你修改你同学写的以下作文。文中共有10处语言错误，每句中最多有两处。错误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: 在错的词下划一横线，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仅限一词；
2. 只允许修改10处，多者（从第11处起）不计分。
There are many different signs in the public. They tell you what to do or what not to do in a place. Do you know what they exact mean? For example, if you go to see a film, you should enter the cinema at the ENTRANCE and leave for the EXIT. You will either find NO SMOKING signs in many cinemas. If you visit a museum, don’t take some photos inside the halls. You are not allowed. You will find NO PHOTOS signs in many museum. When you drive a car, don’t park in a street without a NO PARKING sign. Making sure you understood the signs and you won’t get into any trouble.
