– You ought to see a doctor about that cough. -- I guess I should. I _____ it off for days.
Scientists have made a major ____ in cancer research.
His success _______ his hard work.
He slipped and had his leg broken. _______, he will have to be away from school for two or three months.
It will make no difference whether our pay will be _______ 5% this year.
I don’t know if it _____. You’ll get wet if it ____. You’d better take an umbrella.