He had studied English for a year before he came here 其中的before能不能换成when?

Robert wishes that he ________ business instead of history when he was in university.A.studies B.studied C.has studied D.had studied He studied had. He wanted to get good mark.He studied hard _____ ______ to get good mark改为简单句 Not had studied his lessons well,he failed in the exam.哪错了 Although John had studied very hard,he had ___hope of passing the examA.anyB.littleC.a littleD.some He had studied English for a year before he came here 其中的before能不能换成when? ____how little he had studied,he did very well in his exams.A.Regarding B.RealizingC.Considering D.Thinking he did very well in his exam_____(consider)that he had studied so little.填什么?为什么?求详解 He is working as a teacher of English in our school and he _______ in Jiangxi Normal Universityfor four years .A has studied B had studied C studied 请问这个选A 还是C啊 急 Jack wishes that he had studied business rather than histroy when he was in the university1.Jack wishes that he had studied business rather than histroy when he was in the university2.Jack wishes that he had studied business instead of histroy when He ______ English for three years before he went to Canada last yeara、had studiedb、had been studyingc、studiedd、has studied he had studied in that school for more than two yeArea before he moved here 为什么用过去完成时态而不用一般过去时 it was in the room ＿he had studied for three years ＿he found lost pen.A.where that B.th...it was in the room ＿he had studied for three years ＿he found lost pen.A.where that B.that that C.that when D.where when求详细分析?为什么不选B he studied the picture,which ___ in the summer timeA.has takenB.had been takenC.has been takenD.taken选择B.为什么用过去完成时啊 my uncle ____in a high school in beijing,but recently he has studied in ausralia.a was working b is working c works d had worked studied studied he studied English well 改为同义句 He studied for the s____ test.