你想让穿黑色衣服的同学站起来,应说:A.Brown,brown .Sit down .B.Black,black.Stand up.C.Black,black.Sit down
Is the CN Tower the ________ tower in the world? A.tall B.taller C.tallest
Niagara Falls is in ________. A.China B.CanadaC.America
Would you like________to Australia? A.go B.to go C.going
He is ________TV now. A.watch B.watches C.watching
It's one of________ parks in the world. A.the greatest B.greatest C.the great