Dialogue:

W: Come to the movies with us. Everybody needs to take a break every once in a while.

M: I guess I might as well. I've been studying so long I just can't concentrate.

Question: Why can't the man concentrate on his study? 

- He keeps thinking of going to the movies.

- His classmates are taking a break.

- He's been studying for too long.


He's been studying for too long.