Open your books and turn to ___(page) 21.

open your books and r() Now open your books, boys and girls.是什么意思? Open your books and turn to ___(page) 21. please open your books and read lesson( ).A,fifth B,five C,the fifth Open your books ( )read after me .A.but B.and C.so D.or Open your books and turn to ________ 20.打开书,翻到第20页 (填空题) Please open your books.改为否定句 open books Don't open your books .Please keep them_____(close) Don't open your books.Please keep them c______ Open your books怎样改成否定句,句意不变 Don't open your books.(改为肯定祈使句) please open your books.变否定句为什么是在open前加don't Open your mouth and say“Ah”是什么意思 Open your books and turn to page 20.为什么这里的book要加s?什么情况下要加s?动,名词分别怎么加s 排序,组句子：1.open,books,yuor,turn,page,5,and,to.2：bob,look,have,your,a,photo,can,at,i.要翻译 翻译keep your mouth shut and your eyes open Open your mouth and let me ex_____ your tongue.