Can we talk about the book in the library

we can learn english from reference___(book)in the library We usually talk quietly in the library. Can we talk about it the day___tomrrow We ______ talk loudly in the library.A.must B.mustn't C.can We never talk l______ when we're in the library. we can speak loudiy in the library 把“We should't talk in the library.”改为祈使句 We usually talk quietly in the library.（同意句） 改为祈使句：You can't talk loudly in the library you can't talk loudly in the library 改为祈使句 You can't talk in the library.改为祈使句 _______ in the library._ We can read books in the library.(in the library划线)划线部分提问