ˉWhat will happen if I smoke here?ˉAnyone______ here will be punished. A. seeing smoke B seeing smoke C. seen smoking D. seen smoke
---What made her unhappy? ---_____.
The machine might break down someday in the future, ____, you can dial this number for help.
_________ returns first will win the big prize.
—Mary said Leo worked really hard. — _______.
— I regret _______ you that you failed the exam. — How I regret _______ so much time playing computer games.