You can only be sure of _____ you have at present; you cannot be sure of something _____ you might get in the future.
Mr. Read is the person to ___________ you should write.
I’msorryIcan’tjoinyou. I __________myhomework.
—Wouldyoulikesomethingtodrink,girls? —Yes,_______,please.
Time waits for no man. But teenagers won’t realize the value of time until it’s gone. Don’t waste your time, __________ you will regret it.
Rather than at home alone, Little Tom go to the cinema that day.