The girls are singing and dancing happily 是什么结构

Who are the girls Are the girls make cakes? Three q of the students are girls What are the boys girls doing The _____ girls are my good friends. look,the girls are ( )(skip)over there The girls are very nice.改感叹句 There are ( ) ( ) ten girls in the classroom. Why are girls afraid of the letter why are girls afraid of the letter Are the girls English?意思是啥? who are the litte girls in pain? The girl is Japanse的复数是The girls are Japanse还是These girls are Japanse We are all good friend.The girls are also our The girls are playing over there 对are playing提问 The girls are playing over there.就“are playing” 提问 Who are the ( ) girls?They are Jenny and Ann the girls are (cleaning the room) now.对括号提问