______ plenty of water in this river.A.There used to being B.there used to beC.There is used to beingD.There was used to be

wat a lost of plenty of与a plenty of a plenty of 和 plenty of people need plenty of water.（划线部分提问）People need （plenty of） water.(括号内提问） ______ ______ water do people need? wat He has plenty of ______(imagine),so he can______(imagine) all kinds of things. plenty of和plenty的区别加急 plenty 和 plenty of 的区别 以 plenty of 造句 plenty of wish plenty of是什么词 plenty of time 中文 plenty of的用法 plenty of 等于什么 plenty of 等于什么 plenty of 的用法 lots of=plenty of plenty of和a plenty of的区别是什么