目录 致学生 致老师 Thanks 现在进行时与一般现在时 (I am doing and I do) 一般过去时与过去进行时 (I did and I was doing) 现在时与过去时 (I do / I am doing and I did / I was doing) 现在完成时与现在完成进行时 (I have done and I have been doing) 现在完成时、现在完成进行时与一般过去时 (I have done and I have been doing; I did) 现在完成时与现在时 (I have done / I have been doing and I do / I am doing) 现在完成时、现在时与过去时 (I have done / I have been doing， I do / I am doing and I did) 现在完成时与一般过去时 (I have done / I have been doing and I did) 一般过去时、过去进行时与过去完成时 (I did， I was doing and I had done / I had been doing) 一般过去时、过去进行时与used to (I did， I was doing and I used to do) 现在时、现在完成时与过去时 表示将来：现在时与will/shall (I do / I am doing and I will/shall do) 表示将来：现在进行时、will/shall与going to (I am doing， I will/shall do and I am going to do) 表示将来：复习 情态动词：can、could与be able to 情态动词：may与might 情态动词：can、could、may、might、must与can't 情态动词：must(n’t)、need(n't)、shoutd(n’t)与don’t have to 情态动词：(don't)have to、shoutd(n。t)、had better(not)与 ought(not)to 情态动词：shoutd 情态动词：复习 虚拟语气：if I do与if I did 虚拟语气：if I did与if l had done 条件旬：复习 1wish 被动语态 have someth ing done 疑问句 间接引语与疑问句 动词-ing形式与不定式 介词和短语+动词-ing形式 I'm usedtodoing与I usedtodo 动词不定式与介词+动词-ing形式 (afraid to do and afraid of doing) 动词形式：复习 可数名词与不可数名词 a／an、some与the the 限量词与代词 定语从旬 形容词与副词 比较级与最高级 词序 时间介词 地点介词 介词(概述) 形容词／动词+介词 短语动词 练习143解答 答案
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