—The food here is very nice. Thank you for inviting me.— _____ I’m glad you enjoyed it.
--How about your English?--I found ________ hard to learn it well.
He looks upset. He doesn’t know ________.
Mrs. Smith eats _______ meat, so he is ________ fat now.
There are about two ________ students in the new-built school.
--Peter, don’t play that kind of jokes any more?--Sorry, I ________ do it again.