____ the class teacher put emphasis on the importance of doing homework independently, his students still spent most of the time copying others’ homework.
A.While B.Despite
C.Unless D.Once
_____ we are faced with, we will have no choice but to unite and overcome them.
A.However tremendous difficulties
B.However tremendous some difficulties
C.Whatever tremendous difficulties
D.Whatever tremendous the difficulties
The efforts made by researchers ____ possible the appearance of a new life-saving medicine.
A.were made B.made
C.made it D.were made it
Have you ever heard such stories about those loyal dogs ____ in this book?
A.as they are described B.that they are described
C.as are described D.that are described
假定你是红星中学的李华，你的英国朋友Peter热爱体育运动，他将作为交换生到你校学习一年。请你给他写封邮件，主要内容包括:
1. 介绍你校体育课程及活动;
2. 推荐一项中国传统体育项目。
注意：1.词数100左右；
2.可以适当增加细节，以使行文连贯。
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文中共有10处语言错误，每句中最多有两处，每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.
My friend Lilly and I were on the way back to home from school when we saw a boy fall off his bicycles. The boy lay on the ground， screamed in pain. We rushed to help and found if the boy's left leg was bleeding. It happened that we have learned some knowledge about first aid before， so we knew how we should do. We dialed "120" and called an ambulance. While waiting it， I took out my handkerchief and pressed them onto the bleeding point. Then we rolled the boy onto one side but put him in the recovery position. We stayed with him until the ambulance arrived 5 minutes late.
