If _____ the same treatment again, he is sure to get well.
---Tom has failed again in the math exam. I am really let down.---______ He has already done his best.
_____ that it was sold out when it came out.
Was it at the beginning _____ you made the promise ____ you would do all to help make it?
--- How old are you, madam?--- If you _______ know, I’m twice my son’s age.
Gradually, you will realize that the things that matter are __________ that can’t be bought with money.