—Shall I attend my friend's comingofage ceremony, Mum?—No, unless you see to ________ that you will be home before 10:00 P.M.
Be careful ! The slightest spark could ______ the fireworks.
. The police are offering a $ 60,000 _____ for information about the killer.
People generally think that smoking is a bad ______ .
We invited her to dinner but she didn’t even bother to _______ .
—Where does your little daughter want to go during her holiday ? —She is always looking forward to _____ to the Wu Yi Mountain.