Lesson 57I.用适当的介词填空1.Dont run _ the rain.2. I always have good memories _ our time together.3. I hope we can always keep _ touch each other.4.She can dance _ standing on a chair.5. Best _ luck to you.II. 根据句意及所给汉语提示，写出单词。6. I lost my _ (钱包) on my way home.7. Do you like _ (划船)?8. Who is the _ (主人) of the house?9. I will go to _ (高级的) high this year.10. Best _ (祝福) to you in the future.III. 翻译下列句子。11.我们应该把这个钱包还归主人。 We should _ the wallet _ _ its _.12. 祝你考试好运。 _ _ _ your exam.13. 一定保持联系。 _ _ _ stay in touch.14. 尽管我们要分离，但我们的友谊会总是保留。 _ we will_, our friendship will always _.15. 上高中是一个新的开始。 _ to _ _ is a new start.Key：Lesson 571.in 2.of 3.in 4. by 5. to 6. wallet 7. boating/to boat 8. owner 9. senior 10.wishes 11.get back to owner 12.Good luck with 13.Be sure to 14.Though/Although part remain 15. Going senior1