I don't think it was Tom who said it ,______?A didn't he B w

I don't think it was Tom who said it ,______?A didn't he B wasn't it C don't I D doesn't it
强调句做从句时的反义疑问句怎样解答

反义疑问句由两部分组成：前一部分是一个陈述句,后一部分是一个简短的疑问句,两部分的人称时态应保持一致. 1．陈述部分肯定式+疑问部分否定式 可记为 前肯后否 2．陈述部分否定式+疑问部分肯定式 可记为 前否后肯 They work hard, don’t they? She was ill yesterday, wasn’t she? You didn’t go, did you? He can’t ride a bike, can he? He is a student,isn't he?
[编辑本段]特殊的句型
请注意以下句型的反义疑问句的用法： 1．当陈述部分的主语是I , everyone, everything, nobody 时,后面的疑问句应表示为： I am a student, aren’t I ? Everyone is in the classroom, aren’t they? (基本不用单数） Nobody will go, will they? 2. 否定 （1）当陈述部分有never,seldom, hardly,few,little,barely, scarcely, nothing 等否定词时,后面的疑问句则为肯定形式： There are few apples in the basket, are there? He can hardly swim, can he? They seldom come late, do they? （2）当陈述部分含有否定意思的词是unhappy,dislike,unfriendly等含有否定词缀的派生词时,疑问部分要用否定形式.如： He looks unhappy,doesn't he?他看上去不高兴,不是吗? The girl dislikes history,doesn't she?这女孩不喜欢历史,不是吗? 3.think, believe, suppose, imagine, expect等动词后接宾语从句构成的主从复合句在构成反意疑问句时,视情况不同有两种不同的构成方式. (1.)当主句的主语为第一人称时,其后的简短问句应与从句相一致.例如： I expect our English teacher will be back this weekend, won't she/he? We suppose you have finished the project, haven't you? 值得注意的是,当这些动词后接的宾语从句的否定转移到主句时,其仍属否定句,故其后的简短问句应用肯定式,而非否定式.例如： I don't believe that he can translate this book, can he? We don't imagine the twins have arrived, have they? 此类句子的回答同"前否后肯"型反意疑问句一样,如上述后一个句子,若双胞胎已经到了,则回答为"Yes, they have."；若尚未到达,使用"No, they haven't.". (2).当主句的主语为第二、三人称时,其后的简短问句则应与主句相一致（此时,否定只看主句,与从句无关...）.例如： Your sister supposes she needs no help, doesn't she? You thought they could have completed the project, didn't you? They don't believe she's an engineer, do they? She doesn't expect that we are coming so soon, does she? (3)但如果主句的时态是过去时等等,疑问句应和主句的人称时态保持一致. 4. 陈述部分有had better,或其中的have表示完成时态时,疑问句应用hadn’t等开头： You’d better get up early, hadn’t you? 其他情况句中有have时疑问句应用don't等开头 如have表示“有”的时候,有两种形式： -He has two sisters,hasn't he? -He doesn't have any sisters, does he? 5.当陈述部分是祈使句时,疑问句要根据语气来表达 Let’s go out for a walk, shall we? （当开头是Let‘s时,一定要用shall we.Let us也不行） Let us go out for a walk, will you? Let me help you,may I? Turn on the radio, will you? 6 There be 句型中,反义疑问部分必须为 be 动词 + there There are some apples in the basket, aren't there? There isn't any milk left, is there? 7.当陈述部分有情态动词must,问句有4种情况： （1）mustn't表示“禁止,不可”时,附加问句通常要用must. You mustn't stop your car here,must you? 你不能把车停在这地方,知道吗? （2）must表示“有必要”时,附加问句通常要用needn't. They must finish the work today,needn't they? 他们今天要完成这项工作,是吗? （3）当must用来表示对现在的情况进行推测时,问句通常要根据must后面的动词采用相应的形式. He must be good at english,isn't he? 他英语一定学得很好,是吗? （4）当must+have done表示对过去的情况进行推测（一般句中有明确的过去时间状语）,问句要根据陈述部分谓语的情况用“didn't+主语”或“wasn't/weren't+主语”；如果强调动作的完成（一般没有明确的过去时间状语）,问句要用“haven't/hasn't+主语”. She must have read the novel last week,didn't she? 她上星期一定读了这本小说,是吗? You must have told her about it,haven't you? 你一定把这事告诉她了,是吗? 8.反意疑问句的回答用yes, no, 但是,回答意思相反,当陈述部分是否定形式时,回答要按事实.如： They don’t work hard, do they? 他们不太努力工作,是吗? Yes, they do. 不,他们工作努力./No, they don’t. 对, 他们工作不努力 1. 肯定反意疑问句的回答 当陈述部分为否定式,反意疑问句为肯定式时,其回答往往与汉语不一致,需特别引起注意： "It isn’t cheap, is it?" "Yes, it is." “它不便宜吧?”“不,很便宜.” "He doesn’t love her, does he?" "No, he doesn’t."“他不爱她,是吗?”“是的,他不爱她.” 2. 否定反意疑问句的回答 当陈述部分为肯定式,反意疑问句为否定式时,其回答一般不会造成困难,一般只需照情况回答即可： "It’s new, isn’t it?" "Yes, it is." “是新的,对吗?”“对,是新的.” "He wants to go, doesn’t he?" "No, he doesn’t." “他想去,对吗?”“不,他不想去.” 3. 回答反意疑问句的原则 回答反意疑问句通常应根据实际情况来确定,如有人问你You are asleep, aren’t you? 你应回答No, I’m not. 因为既然你能回答,肯定你还没有asleep.但如果别人问你 You aren’t asleep, are you?(你还没有睡着,对吗),你也只能回答No, I’m not.(是的,还没有睡着),而不能回答为Yes, I’m not. 也不能回答成 Yes, I am.
综上所述,此题选B