假设你是李华，刚结束学校安排的“加拿大之旅”返回福州。请给你在加拿大时接待家庭的主人Johnson夫妇写一封信，主要内容包括：
1. 你已安全返回福州；
2. 感谢他们的盛情款待和照顾;
3. 希望他们有时间来福州游玩。
注意：1．可适当增加细节，以使行文连贯，合乎逻辑；
2．词数100词左右。

Dear Mr. and Mrs. Johnson,

Best wishes!
Yours truly,
Li Hua

参考范文

Dear Mr. and Mrs. Johnson,
I’m writing to tell you that I had a safe journey back to Fuzhou. Thanks to your hospitality, I had a wonderful time in Canada.
It was my first time to go abroad and I was naturally a bit nervous when I first arrived. The first time I saw you at the airport, I knew from your warm smile that everything would be all right. With your help, I visited so many places of interest in Canada, of which I have good memories. In addition, what has impressed me most is your motherly care when I was ill, which made me feel at home.
I hope someday you will come to visit Fuzhou and I can return your kindness.
Best wishes!
Yours truly,
Li Hua
感谢信