请填词.The book _______ three volumes.Each volume costs 30yuan.

请填词.The book _______ three volumes.Each volume costs 30yuan.
Mary ________ be very lazy,but now she's hard-working.Reading aloud is _____ to improve your English.We ________ four groups to play the game.Playing football is _______ atfer-school activity.词：Used to,a great help, a typr of, be divided i nto,be made up of