They are waiting for mary.用who对mary提问

They are waiting for mary.用who对mary提问 They are waiting for the bus?划线部分为：waiting kor the 对划线部分提问 They are waiting for their turns now对划线部分提问 对their turns提问 _ Mary is my friend.对Mary提问 mary cleaned the room 对mary提问 The girl likes Mary.对Mary提问 英语语法时态They are waiting for you  (at the library) 对括号提问W ( ) are they waiting ( A why,for B who ,/ they,who,are,for,waiting ) 连词成句 Mary likes apples for breakfast.(对"apples"进行提问) They are waiting for their MUm.（提问） （they are） waiting for the bus.画线部分提问