Most of his money___spent on books. 填 is 还是 are?

英语翻译是不是：His books are the most of the three.His books are mo Our books are all here.Is _________here?单项选择题填yours,his还是her Where () his pencil-box and books?中间填is 还是 are Those aren't my books.___ are his books.是填Those还是填They? His trousers are on the bed.Mine __ hehind the door.应该填is 还是 BEN spent most of his salary on books,and the rest was for h what we need____(填is还是are）good books. His reward ( ) a bottle of juice and some milk 括号里填is还是are? what we need most are/is books? a series of books 后面加is 还是 are? there ____ a kind of books.是is 还是are? there ___ some bottles of water on the table.请问填are还是is?