（A）

      Mary is an English girl, but shelives(居住) in China.She is six. Her mother says to her, "You are six now, Mary, you are going to school.I think it is very good. It's a nice school."

      "Is it a Chinese school?" Mary asks.

      "Yes, it is." Her mother says.

      It is September(九月) and the new school year begins. Marygoes to school every day. She likes her lessons（功课） and her classmates(同学)very much.Her classmates like her, too. Mary can speak a little Chinese. She likes China.She likes the people of China and Chinese food very much. 

尊师重教是一个社会文明进步的标志。尊敬老师（    ）
①不但是美德，也是社会的行为规范       ②是千百年来中华民族形成的优良传统
③就不要给老师提任何意见                       ④就是尊重知识、尊重人类的文明和进步 

有20支铅笔，平均分给5个小朋友，每个小朋友可以分得几支？列算式为：（   ）。