We have studied English for 3 years.被动语态为什么是 English has been studied fou 3 years by us 而不是 English has been studied by us for 3 years?

高中英语题we should have studied last ,but we .we should have studied last night,but we went to the concert instead 这个should have studied 为什么不能用would have studied?两者有什么区别吗 we ()last night ,but we went to the concert insteada.must have studied b.might studyc.should have studied d.would study should have studied We have studied English (for about three years).对括号部分提问 we should have studied last night,but we( ) to the concert instead 为什么是went,不是had gone?we should have studied last night,but we( ) to the concert instead 为什么是went,不是had gone? we should have studied last night,but we went to the concert instead 可不可以用should stuy we have played baskeyball______ we studied at thos school .A.since B.for C.in D.when 改错：we have studied English for about six years since I have become a middle school student. have studied 和 have been studied的区别 We have studied English for 3 years.被动语态为什么是 English has been studied fou 3 years by us 而不是 English has been studied by us for 3 years? 初二英语试题,求讲解we have studied at the school（）two years ago.A.beforeB.forC.aboutD.since The teacher said that we _____ten lessons by the end of this term.A.should study B.have studied C.were going to study D.should have studied选什么呢? We didn't study English last night,but we ______.A.had studied B.couldC.should D.could have为什么选D,不懂 You have failed in the test again .You ( ) hard at your subject .A should have studied B must have studied C may have studied D need have studied studied studied 请翻译一下：do you have studied? Have you (ever)studied (with)a group?