After you finish reading the library books you’d better ____

After you finish reading the library books you’d better ____ when you finish reading the book,you have____ better underst You’d better keep the books（ ） You'd better finish the work ------ I have told you. It's better the book to the library as soon as you finish it you‘d better have a good h_l_d_y after you finish doing this please return those books to the library when you ___（finish You'd better put the books where they were. You can't borrow books from the school library ____ you get You'd better not run after the dog.(改为祈使句) You'd better do some reading.是什么意思? have you finish reading the book?