用be的合适形适填空These books ______in the backpack.

用be的合适形适填空These books ______in the backpack. 用be的适当形式填空：These books in the backpack This his watch .It wh 用be的合适形适填空These books ________.It ______white. These are the books.T___ are in backpack.怎么写? These are the books.T___ are in backpack.空里填什么? -are these[ ]【she】comic books.-no,they aren't用合适的代词填空 用there be句型改two books are in the backpack 用be的合适形适填空His telephone number_______3792321 These books are the ()(students)用所给词的适当形式填空 用合适的介词、副词填空：These Young Pioneers are cleaning_____ the beach These be his books的正确形式 all these books need to be packed into the boxes为什么要用be