阅读下面的一封信，判断下列句子的正误。

Dear Jack,

My name is David. I am 10 years old. I study in Willow Primary School. My favorite day is Monday. We have English and science classes and we have sandwiches for lunch. Sandwiches are my favorite food. They're delicious. Monday is a great day! My favorite teacher is Miss Brown. She is our English teacher. She's kind, but sometimes she is strict. She's young and pretty. She's very helpful. Her class is fun. We all like her very much. I hope to hear from you soon.

Your friend,

David