下列词语中划线的字，每对读音都相同的一组是  (　　)

种子植物比苔藓、蕨类更适应陆地的生活，其中一个重要的原因是能产生____ 。

20世纪50年代初，西欧国家工业生产总体上已恢复到第二次世界大战前的水平。促进当时西欧国家经济恢复的原因不包括（   ）

在正方形ABCD的边AB、BC、CD、DA上分别任意取点E、F、G、H，这样得到的四边形EFGH中，是正方形的有（　　）.

C

     There are many festivals at our school. This month is October. In October there is a sports festival. We have the volleyball game and the basketball game during(在……期间) the festival. On October 15th，there is an English festival. On that day we have an English speech contest(演讲比赛)．On October 19th，we have a school trip. We go to Beijing with the teachers. On the last day of this month，there is a music festival. On that day we can enjoy beautiful music. It's really wonderful. Next month，there is an art festival. Students often display(展示) their pictures on that day.