问题详情：
根据句子意思，用括号中所给单词的适当形式填空。
1. At present more and more students choose online courses and study by (they).
2. Nanjing looks much more beautiful on (snow) days.
3. —Nancy, I really don’t know how to write articles.
—Don’t worry. (use) a mind map to organize your ideas.
4. This bookstore sells many English (dictionary). You can choose what you like.
5. There (be) four students from School for the Blind in Nanjing sharing reading with the students in the US through online video on April 22, 2016.
【回答】
1. themselves 2. snowy 3. Use 4. dictionaries 5. were
知识点：构词法
题型：完成句子
