When talking about doing exercise, you should choose an activity that you enjoy and _____ that you will stick with.
A. the one B. one
C. 不填 D. another
This morning Professor Smith, foreign teacher from Beijing University, who gave us an English lesson. All of us were deep impressed by this unforgettable lesson. The professor began the class in an amusing English story, which attracted their attention at once. He spoke slowly and clearly so that we could follow him well. Greatly inspiring, most of us took an active part in classroom activities. After class, many students were spoke highly of him. They said never before have they experienced such interesting a class. From his lesson, we realized that it is not so difficulty to learn English well if we find a good way.
1.foreign teacher from Beijing University.。此处是名词短语做Professor Smith的同位语，teacher是单数可数名词，故前面加a。
2.This morning Professor Smith, …… who gave us an English lesson.。根据结构判断gave的主语是Professor Smith，而不是定语从句，所以去掉who。
3.All of us were deep impressed by this unforgettable lesson。deep意思是“深的”，指具体的深度，deeply指抽象意义“深深地”，而此处指我们对他的课印象深刻，故把deep改为deeply。
4.The professor began the class in an amusing English story。固定短语：begin …..with“以……开始”，故把in改为with。
5.which attracted their attention at once。根据语境可知此处指吸引了我们的注意力，故把their改为our。
6.Greatly inspiring, most of us took an active part in classroom activities.。动词inspire和句子主语之间是被动关系，故改为过去分词inspired。
7.many students were spoke highly of him。根据上文可知本句指学生对老师评价很高，用主动形式，把were去掉。
8.hey said never before have they experienced such interesting a class.在本句中主句是一般过去时，那么宾语从句应该受主句时态的影响用过去完成时，所以把have改为had。
9.….. they experienced such interesting a class.。such用来修饰名词，结构为：such+ 形容词+（冠词）+名词；而so一般用来修饰形容词或者副词，修饰单数名词时结构为：so +形容词+a /an +单数名词，所以把such改为so。
10.it is not so difficulty to learn English well。系动词is后用形容词做表语，故把difficulty改为difficult。