题目

请先阅读下面短文，掌握其大意，然后根据短文内容从下面方框内的7个选项中选择5个还原到文中，使短文意思通顺、结构完整。 On Wednesday my class  go to London Zoo.   (1)   We are all very happy. We leave early in the morning because it is a two-hour trip.   (2)   Because the driver of the bus wants to check (检查) something. While we are waiting(等待), my friend and I go to a shop to buy chips. We soon forget about time.   (3)   My friend and I run outside and start shouting, but it is of no use. We wait for some time直接写出得数．67+27=14+45=1-19=12+13=12-15=45+12=23+16=56-19=