很多空可以填很多不同的词,大概根据上下文帮你连了一下~~
I found a set of keys_by chance____when we are having a PE class today.I thinkit may be Lily's.I asked her,"Lily,are there_yours_____?"She said,"No,they aren't.You could put it in the_lost and found box________in our class and wtite a notice.And tell the student to_have a look______.And the teacher will give them to him or her." I think that's a good idea.
then she runs to__go back____to school. 最后这个地方不太好填,这个句子感觉像是一半不完整