David studied hard before the examination, and it ______. He made an A. A. worked out B. marked out C. paid off D. got through
She was good at physics _________she found it boring.
The experiment show that proper amount of exercise, if ________ regularly, can improve our health.
Listen! Do you hear someone _________ for help?
His first book ________ next month is based on a true story.
I’m not going to ________ their smoking any longer.