The meeting will begin in 10 minutes, ________we can sing a few songs
--Can I have your name, sir? --Err… Albert Johnson, if you _______ know.
Do you know the boy under the tree_______ is playing with a dog/
Many people believe if you are _______, better things will happen to you.
I’ve just read your blood test report and all seems OK, so there’s _______ to worry about.
--Could you help me with some math problems? --Sure. That’s _______ I’m here.