简单的定语从句翻译，定语从句！！！英语高手帮忙啦~

1.This is the pen that he bought yesterday.
2.He is the student who knows the answer to the question.
3. You could order food that you like.
4. The most exciting boy who is playing football is my brother.
5. The book which you are most interested in is borrowed from Lucy.

• 1.This is the pen that he bought yesterday..这是他昨天买的笔。
  
  2.He is the student who knows the answer to the question.他就是知道那个问题答案的学生
  3. You could order food that you like..你可以点（order）你喜欢吃的食物。
  
  4. The most exciting boy who is playing football is my brother.在踢足球的那个最兴奋的男孩是我哥哥。
  
  5. The book  which you are most interested in is borrowed from Lucy这本你最感兴趣的书是Lucy借给我的。
  

1 This is the pen he bought yesterday.
2 He is the student who knows the answer to the question.
3 You can order the food you like.
4 The boy who is playing football the most excitedly is my brother.
5 The book you are the most interested in is borrowed from Lucy.
所有句子都是定语从句