we must return these m___to the library on time

we must return these m___to the library on time You must return these books on time.改祈祷句 Must we return the book in time?回答 we must accept finite disappointment,but we must never lose infinite hope.whose words are these? We must water these young trees ofen.(改为被动语态) we must plant these trees 改成一般疑问句 英语翻译We must remember these places —— —— We must learn how to chang these problems into challenges. must return a value we must stop doing these things.划线部分提问,划线部分,these things We must do something to protect our environment.We should use these bags（ ） plastic bags. We must We must water these plants three times a week（改为被动语态） 1.We must water these young trees ofen,(改为被动语态). We must take action to protect these birds in danger的同义句是什么 look at these white lines we must cross the street here怎么读 These are the conditions that we must accept.这个怎么翻译啊? we must learn how to change these problemsinto c ____