短文改错。

    One summer evening, I was playing and ____ some childs ____ by a river. We saw a lot of frogs(青蛙) in the water. One of us said, “Let's to see ____ who can Catch most ____ frogs.” Then we began. After while____  we caught a lot. We are ____ having a good time when a farmer shouted at us. “Don't caught ____ frogs!” Then he told us how importance ____ they are to farming. They eat a lot of bad insects(害虫) every year, Caught ____ frogs must be stopped. After hear ____ that, we felt very sorry.

下列各式比较大小正确的是（      ）

1). 讲座的时间:5月7日(星期六)上午8:00— 11:00

2).讲座地点:3号教学楼一楼102室;

3).活动安排:听讲座,讨论及提问,诵读孔子经典名句等.

注意：1.词数100 左右2.可以适当增加细节，以使行文连贯；3.开头和结尾已为你写好,不计入总词数.参考词汇：孔子 Confucius 孔子思想 Confucianism

Dear David,

Yours,

LiHua

1991年，苏联发生“8·19事件”，至12月，世界上最强大的社会主义国家苏联宣告（    ）