1,Mr Black had taught in this school by 1970（改为否定句）Mr Black _ _ _ in this school by 19702,By the end of last term, we _ (learn) about three thousand English words.3,He had cleaned the room by eight o'clock yesterday.( 改为一

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1,MrBlackhadtaughtinthisschoolby1970（改为否定句）MrBlack___inthisschoolby19702,Bytheendoflastterm,we_(lear

1,Mr Black had taught in this school by 1970（改为否定句）Mr Black _ _ _ in this school by 19702,By the end of last term, we _ (learn) about three thousand English words.3,He had cleaned the room by eight o'clock yesterday.( 改为一
1,Mr Black had taught in this school by 1970（改为否定句）
Mr Black _ _ _ in this school by 1970
2,By the end of last term, we _ (learn) about three thousand English words.
3,He had cleaned the room by eight o'clock yesterday.( 改为一般疑问句）
3,_ he _ the room by eight o'clock yesterday?
4,John had seen the film before, _ _ (完成反意疑问句）
希望各位英语高手能指点一下过去完成时的一般疑问句,反意疑问句等怎么写?

1,Mr Black had taught in this school by 1970（改为否定句）Mr Black _ _ _ in this school by 19702,By the end of last term, we _ (learn) about three thousand English words.3,He had cleaned the room by eight o'clock yesterday.( 改为一
1,Mr Black had taught in this school by 1970（改为否定句）
Mr Black had not taught in this school by 1970
2,By the end of last term,we had learnt (learn) about three thousand English words.
3,He had cleaned the room by eight o'clock yesterday.( 改为一般疑问句）
3,Had he cleaned the room by eight o'clock yesterday?
4,John had seen the film before,hadn't he (完成反意疑问句）
否定句:had not动词过去分词
一般疑问句:had提前

1i have had a tremperature[ ]i had a headache.2mr.black has lived in china[ ]five years ago.为什么英语翻译人名：(1) Mr Bakr (2) Mr Black (3) Mrs Black (4) Mike (5) Tony Mr Black had to （take tom to the hospital） last week 对括号内提问~ Mr Black had to go back,后面填hadn't he?这个是特殊用法吗？ We can't______the city for vacation.Mr Black said we had to be close to nature Mr .Green ____supper with Mr.Black this evening,a:is going to have b:have c:has d:had mr black liked fishverymuch Mr Black is not my____teacher is mr.black. 1,Mr Black had taught in this school by 1970（改为否定句）Mr Black _ _ _ in this school by 19702,By the end of last term, we _ (learn) about three thousand English words.3,He had cleaned the room by eight o'clock yesterday.( 改为一 1,Mr Black had taught in this school by 1970（改为否定句）Mr Black _ _ _ in this school by 19702,By the end of last term, we _ (learn) about three thousand English words.3,He had cleaned the room by eight o'clock yesterday.( 改为一 1i have had a tremperature[ ]i had a headache.2mr.black has lived in china[ ]five years ago.为什么1.a.since b.for c.before d.after2.a,before b.for c./ d.since Mr Black ___(leave) his keys in the office,so he had to wait until his wife ___(come) home. Mrs and Mr Black had a fight about where to go ( ) [spend] there vacation.填他的正确形式什么 Mr Black is a teacher. Mr.Black一家人的英文, Mr Black & Miss White.翻译. 英语翻译What is Mr Black?