the library open 8:30 ,close4:00 must leave ( before 4:00 B.

the library open 8:30 ,close4:00 must leave ( before 4:00 B. You must leave the castle before 12:00怎么读 You must not leave rubbish in the library改为祈使句 You must r_ all books to the library before Friday. All the computers must be ____ down before you leave. Leave the door open. Our school library ___(open) at 4:00 p.m .it___(open) from 4 -Must I return the books to the library before Wednesday?-No We must not leave rubbish in the library(变为祈使句） We must renew the library books before they are b____ 首字母填空. What must you do before you return a book to the library?你来翻 You must return this book to the library before you borrow a