题目内容：

A. 假如世界地球日即将来临，学校将于周五邀请Ms Smith 来校做一次关于如何保护环境的报告。地点在学校礼堂，请同学们准时参加。请完成短文，每空一词。

Notice Attention, please！

Do you know Earth Day? It's _____________ April 22. To celebrate it, our school will _____________ Ms Smith to give us a talk on __________ to protect the environment and love our earth. I'm ____________ it will be a wonderful lecture. Please come to the school hall at 1:30 pm on ____________. Please be on time.