根据句意及首字母填空。

1. He likes collecting stamps, and I like collecting stamps, too. So we have a c_____ hobby.

2. The f_____    between us is very deep.

3. The old man likes telling stories.  His funny stories make us l_____  a lot.

4. The two twin brothers are d_____  in some ways.

5. His little brother is only 7 years old.  He is just a p_____   school student.