He who has no sincere friends is

Write a short passage , describing your best friend using relative clauses.

Who is your best friend?
What are  his /her hobbies?
What are his /her personalities?

This is  last night's homework for my students.

Meanwhile, I am thinking about the questions myself. 

Who is my best friend？ How do we define a best friend as an adults？As an adults, unlike children or young people, the word  friend means differently .  To me,  anyone  who is generous to spare time to help me or play sports with me for a long time can be considered as my friend.

So Ivy is my friend, best friend.

My best friend is Ivy, a graduate student intern  who worked in my school for 10 months.  During the 10 months we experienced a lot and  did many things together  sharing many many same interests and activities.

What she enjoys doing is playing ping pong, playing badminton, playing volleyball, dancing and singing.  It is she who encouraged me to  do sports with her, and then with a group of colleagues.

She is energetic, active and talented. What impresses  and touches me most is that she is willing to help others. Whenever possible and necessary, she wouldbe ready to give a helping hand to anyone in our group,  which wins every body's hearts.