What's the _____(common)hobby?答案是commonest、为什么要加est呢?

what's the building's _____ (high) what's the _____ of their hair? What does the word mean?的同义句急是What;s the _____ _____ the word? what's the cost of the trip?（同义句） _____ _____ does the trip _____? -What's the _____ today?-It's October 6th. what's the color _____ your uncle's new car? What do you _____?What's the _____ of the new word?(mean) 同义转换What's the meaning of sew?What ____ _____ _____ sew______? what's the price of those shorts?_____ _____ _____ those shorts? What's the time _____ your watch?用介词填空 What's special _____ the school?填介词 ( )16.—What's in _____ glass on the table? ——What's the matter?——Nothing _____. What's _____?A.matter B.the matter What`s ____in the cinema?_____上填介词 what‘s the central _____ (think) of this article? What's _____ the mug?中间填什么? What's the matter (同义句) What's____ _____ What;s_____