Good friends do not _______ what they do for each other; instead they offer help when it is needed.
People from the West like to use such expressions as “please” and “thank you” in cases ______ some people in Asia may not think it necessary.
______ has passed the test will get a prize.
The question came up at the meeting_____ we had enough money for our research.
I hate _____ when people talk with their mouths full.
Many of them turned a deaf ear to his advice, _______ they knew it to be valuable.