Is oxygen the only gas _______ helps fire burn?
You didn’t let me drive. If we ____ in turn, you ____ so tired.
Yesterday, Jane walked away from the discussion. Otherwise, she ____ something she would regret later.
Without the air to hold some of the sun’s heat, the earth at night ____ for us to live.
If only he _______ quietly as the doctor instructed, he would not suffer so much now.
He hesitated for a moment before kicking the ball, otherwise he ____ a goal.