Your help made __________ for me to work out this problem.
----Do you know Robert? ----Yes, He is ________ university student. He likes sports and runs for ___________ hour every morning.
Thank you for me to join you.
Math is not easy, I like it very much.
My parents are so poor that they can not to send me to school.
—I lost my watch on my way to school this morning. —You must be careful next time.