Listen! There must be someone _________ through the jungle. A. trek B. treking C. trekking
Wang Fang is _____ of the five basketball players ,but she plays very well.
Whose room is ______.Millie’s or Betty’s?
Beijing is bigger than _____in Jiangsu.
Is there _____ in the bag?
----How about going for a walk outside? -----_______.