The context of the following conversation is Austin taught Alex to read English. It was important that he help them.:
Austin says I've been spending some of my free time teaching Alex how to read English..
The friend responds That's really nice of you..
Austin responds I'm happy to do it. He's such a hard worker..
The friend responds Is he getting better at reading English?.
Austin responds He can read a whole book now..
The friend responds That's something I can't ever do even though English is my native language..