Everyone must (try) to work hard.括号内的try加不加s?急

Everyone must (try) to work hard.括号内的try加不加s?急 Everyone has a dream.If you want to come true ,you must try your best to work hard christmas eve ,everyone must Try to smile at everyone是什么意思 Everyone must () from Lei Feng.同 once you want,you must try to he must try to eat_(little)food 关于一道英语语法填空题.Try to depend on yurself.is what natue says to everyone,that is,one must depend on his own,_______children.空格中需要填什么?能不能告诉我为什么选这个？ Everyone must do one's duty.还是Everyone must do his duty. You must try to be calm可以说You must try calm吗 Everyone should try to protect the environment.Everyone should ______ ______ _______ protecting the environment. Everyone must be careful and o___the traffic rules. everyone,rules,traffic,must,the,know（.） 连词成句 Everyone must o___ the laws of our country we must learn to be_____(friend) to everyone everyone must use water and electricity well改为同义句是什么?everyone must __water and electricity__ __ __. your,must,mistakes,you,learn,from,try to We must try our best___________________(挽救这个女孩）