what's your favorite subject,Dave?戴维,你最喜欢什么科目?
My favorite subject is math.我最喜欢数学.
why do you like it?你为什么喜欢它?
Because it's interesting.what sbout you 因为它很有趣.你呢?
I don't like it.It's so difficult.我不喜欢它.因为它太难了.
Don't worry.Ican help you.别着急,我可以帮你.
Thanks.