Although new problems ______ during the last experiment, they didn’t give up.
You ________ pay more attention to your behaviour next time.
—_________ I turn up the TV a little? —Sorry, you _________. You will wake the baby up.
You ________ do the exercise if you don’t want to.
You _________leave the window open. It’s so cold.
Facts prove that the world’s economic development is not a win-lose game but one in which all ________ be winners.