I have studied in the primary school ,the middle school and senior school for twelve years这句话对

I know little English now,though I_________ it for four years in university.A.studied B.had studied C.have studied D.was studying --I failed in the exam.--sorry to hear that,if only you__with greater care.A.had studied B.studied C.have studied D.study #[39] I ______English in America for 3 years and now I'm working in a foreign-state company.A.studied B. have studied C.have been studyingD.had studied 请帮忙翻译包括选项,并分析.答案A. I ____ English in American for 3 yearsand now I'm working in a foreign-state company.A.studied B.have studied C.have been studying D.had studied为什么,请解析, how long have you studied in this be,beenhe is said ____ abroad,but I don't know what country he studied in.have studied,不可以是to have been studying I have studied English for three months. I love music so much that not a day passes when I do not regret ( )music in my youth.A.not to have studied B.not having studiedC.having not studied D.to have not studied说明理由 I am ashamed,sir,that I wasted the many hours () I should have studied in class.which thatwhenwhile 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 i failed in the physics test ,you——harder before the testA could study B may study C had studied D should have studied 9.I would have told him the answer had it been possible,but I ________ so busy then.a.had been b.were c.was d.would be 10.He studied hard at school when he was young,________ contributed to his success in later life.a.which b.therefore c.that d.so th Robert is said abroad, but I don’t know in which country he is.A. have been studying B. to have been studying C. have studied D. to have studied I have studied in the primary school ,the middle school and senior school for twelve years这句话对 Robert is said to have studied abroad,but i don't know what country he studied inRobert is said ___ abroad,but i don't know what country he studied in.A.to have studied B.to studyC.to have been studying请问这道题目怎么排除BC,C不是强调 I have studied English s____ I was six years old. they______in this school since they ______to thicity in.2000A.have studied;have comeB.have studied;cameC.studied;cameD.were studying;have come tom is the only one of th students in his class who () studied in china A have bhad c hadn't d ha为什么选A啊D为什么不行