假如你是Mary，你也看过CCTV-2 “Good Cook”，学会了cheese sandwich的制作方法。请你给Amanda回信，并向他介绍cheese sandwich的做法。
写作要求：
1. 制作材料：some butter, two pieces of bread, a tomato, an onion some cheese, some lettuce
2. 结合所学知识和生活实践，介绍做法，至少包含5个步骤。
3. 条理清晰，语句通顺，80词左右。信的开头和结尾已给出，不计入总词数。
Dear Amanda,
Thanks for you letter. I have tried the recipe you told me. I like it so much. I learned to make a cheese sandwich from CCTV-2 not long ago. I would like you to try it. Let me tell you how.
Before starting, we should have ________________________________________________
________________________________________________________________________________
I have tried it. It’s easy. Tomorrow is Saturday, so you can try it at home by yourself.
Have a nice weekend!
Yours’
Mary