[解析]
Dear Jack,
I am extremely happy to know you are coming to our school next semester as the exchange student.I even can't wait to meet you.
When it comes tolearn traditional Chinese painting,you are very lucky.Our schoolhad established various optional courses,Chinese painting including.The students meet on every Wednesday afternoon from 3 pm.to 5 pm.With a professional teacher's help,not only∧ you improve your skill,but also you will make many friends. That you have to do is to register on our website.Besides,tools like Chinesebrush,ink and paperis also necessary.
If there issomething else I can help,don't hesitate to let me know.Looking forward to your arrival.
解析
1.The 改为an.考查冠词.表示"一名交换生",用 an修饰以元音开头的exchange student.
2.learn改为 learning.考查非谓语动词.When it comes to表示"当谈到…的时候",后用动名词 learning做宾语.
3.had改为 has.考查谓语动词的时态.根据上文可知本句用现在完成时态,表示"已经设立了…" ,所以和主语Our school一致,谓语动词用 has established.
4.including改为 included.考查非谓语动词.修饰Chinese painting,用过去分词 included,表示"被包括".
5.去掉on.考查介词.every Wednesday 前不用介词修饰.
6.you前加 will/can.考查倒装.not only位于句首,句子 you improve your skill用部分倒装,根据后句but also you will make many friends,可知在 you前加 will/can.
7.That 改为What.考查名词性从句.做主语从句 you have to do的宾语,用What.
8.brush 改为brushes.考查名词.根据tools 可知用可数名词复数brushes.
9.is改为 are.考查主谓一致关系.和主语 tools 一致,系动词用are.
10.something 改为anything.考查代词.本句表示"如果有任何其他的事我可以帮忙的",所以用不定代词anything.