What _____ you doing ?A. are B.am C.is
Why not ________ out for a walk?A.going B.to go C.go
-What do you like?--I like ________.A.to playing basketballB.playing computer gamesC.play the piano
In western countries,they eat ________ on Thanksgiving Day.A.chicken B.turkey C.beef
Mountain Everest(珠穆朗玛峰)is ________ mountain in the world.A.the highest B.highest C.the tallest
A bear is ________ than a monkey.A.fat B.fatter C.thinner