一道关于 现在完成时 的单选By the time he realizes he_____ into a trap,it'll be too late for him to do anything about it.选择has walked是因为此动作发生在realizes前,那为何不选择walked?并且后面说it'll be too late... ,w

一道关于 现在完成时 的单选By the time he realizes he_____ into a trap,it'll be too late for him to do anything about it.选择has walked是因为此动作发生在realizes前,那为何不选择walked?并且后面说it'll be too late... ,w 初二的现在完成时单选 初二的现在完成时单选 一道关于单复数的英语选择题you can recognize a tree by the __ of its__A shapes leaves B shape leaf Dshapes leaf 关于现在完成时的语法 初二现在完成时单选 谁有阿 十万火急 关于英语单选提高问题?我已经高三了,可是 那种关于语法的单选我总是错~怎么才能提高啊~就那些过去完成时现在完成时这一类的~ 一道英语单选,不懂.The interest_____be divided into five parts,according to the agreement made by both sides.declared the judge.A.mayB.shouldC.mustD.Shall 现在完成时中可以用by the time of的结构吗? Who have the work finished by能不能看成现在完成时的被动语态? 一道英语单选：People come to LA 空格 every year with dreams of becoming stars.A.by the million B.by millions C.by million D.by a million by 是现在完成时的标志么 关于现在完成时的用法,求教! 现在完成时和过去完成时的用法在什么时候用现在完成时,什么时候用过去完成时比如by the year 2008 用过去完成时,举点例子 关于英语的一道单选题,这道题为什么不能选C呢? 一道单选题All the leaves________fall are swept away by cleaners.A.which B.that C.where D.when 为什么不选A呢 一道高中关于函数单调性的选择题 关于英语一道题.They enjoy the story ( )by a man.A：wrote B:written C:was written D:write 这里为什么选B不选其他的?