在革命历史博物馆里，我们看到下列图片，历史老师要求用一个主题概括图中事件的教训，你认为最突出的应该是（   ）
         
秋收起义                  广州起义              南昌起义

    Do you like to shop on the Internet? Things online are very cheap. I often get 1 online. Let me tell you how to buy one when I want to know something about a book. Firstly, I write an e-mail to the online shop. Then they will2me some pictures of the book. I think this is very helpful.

    Online shops are3open. I can do shopping even at midnight if I want to . Real shops usually close4 nine o'clock in the evening.

    After you5the online shopkeeper what you want, you can have your things in a few days. When you go shopping in a shopping mall, you have to talk 6 with the shopkeeper and walk a lot. I don't like it, because I get tired 7.

    I am teaching my grandmother8 online. She cannot walk very far(远).9it is easy for her to shop online. My brother wants to learn how to do it too. He is very10most of the time. When he has a little free time, he can shop online. So you see, shopping online saves time.

用方框中所给的短语的适当形式填空。