English is taught throughout the world为什么is 后面要加teach的过去分词应该把is改成was吗

this english song < >many times on the radio A taught B has C is taught D has been taught Neither English nor Japanese ______ in those schools?teaches teach is taught are taught English is always heard[] in these days of China.A; taught B;be taught C;have taught D; to be taught必须有理由 -Can you sing this English song?-Of course,i can.It _many times on the radio.这道题考查的是哪种题型?A、taught B、has taught C、is taught D、has been taught 英语填空She is a hardworking girl.She has taught h______ English for six years The English s___ contest is on May 10th. when is the english party.it's__january 9th Is your mother an experienced English teacher?Yes,She has taught English ____ thirty tears ago.A.for B.since Do you know where our English teacher is teaching now?At a certain univeersity .I___by him at high school for 3years.A.was being taught B.was taught C.am taughtD.would be taught --Is your father a teacher of English in the NO.1 Middle School?---No!But he ___English there for ten years.A.has taught B.has been teaching C.taught D.had taught为什么不选B? --Is your father a teacher of English in the NO.1 Middle School?---No!But he ___English there for ten years.A.has taught B.has been teaching C.taught D.had taught　答案是C为什么不选B? Our new English teacher, who is said to have moved back to china,Our teacher _____for 10 years before she came here. A.taught B.had taught C.has taught D.had been taught 答案选B 2. Our new English teacher, who is said to have moved back to He is a teacher who (that) taught us English last year.关系代词可以用whom吗 这句英语有没有语法错误My English is taught by the teacher who teach my Chinese 5.The first English class I taught He taught English himself.改为同义句 1,do you know the teacher whom taught us english last year?改错题1,do you know the teacher whom taught us english last year?2,this is the house that we visited it two years ago.改错啊 Is your father a teacher of English in the No.1 Middle School?Is your father a teacher of English in the No.1 Middle School?No!But he ( ) English there for ten years.A.has taught B.has been teaching C.taught D.had taught