He isn't at school. I think he ___ be ill.

A. can B. shall C. must D. has to

C 【解析】句意：他不在學(xué)校上學(xué)，我認(rèn)為他也許病了。A. can可能，表示推測(cè)時(shí)，往往用于否定句或疑問句； B. shall在陳述句第二、第三人稱中表示說話者給對(duì)方的承諾、決心、警告、威脅等.如：I shall write to you again at the end of the month.月底我再給你寫封信.；表示強(qiáng)制,用于法令、條約、規(guī)章中,意為“必須,應(yīng)該”； C. must 一...

___ I take this one?

A. May B. Will C. Are D. Do

A 【解析】句意：--我可以要這個(gè)嗎？--可以。A. May可以， May I+動(dòng)詞原形? 是表示請(qǐng)求對(duì)方許可的句型，多用于較正式的場(chǎng)合， 這個(gè)句型的肯定回答: (1) Certainly. Sure. (2) That’s OK/all right. (3) Yes, you may /can. (4)Yes, certainly.等。否定回答是: (1)Certainly not. (2...

The children___ play football on the road.

A. can't B. can

C. mustn't D. must

C 【解析】試題分析：mustn't：表示禁止、不允許。句意：孩子們禁止在馬路上踢足球。故選C

You ___ be late for school again next time.

A. mustn't B. needn't

C. don't have to D. don't need to

A 【解析】句意：下次你上學(xué)不要遲到了。A. mustn't禁止，不應(yīng)該；表示的是語氣很強(qiáng)烈的； B. needn't不必（表示沒必要）；強(qiáng)調(diào)客觀條件。常做must問句的回答:Must I finish my homework today? No, you needn’t或. No, don't have to來回答；C. don't have to不必； D. don't...

—Must I do my homework at once? —No, you___.

A. needn't B. mustn't C. can't D. may not

A 【解析】句意：--我必須馬上做完作業(yè)嗎？--不必了。A. needn't不必； B. mustn't禁止，不應(yīng)該；回答Must I…?的否定回答可以用No, you. needn't/No, you. don't have to； C. can't不可能； D. may not也許不。以must引出的一般疑問句，其肯定回答一般用must來回答。故選A。

His arm is all right. He___ go and see the doctor.

A. has not to B. don't have to

C. haven't to D. doesn't have to

D 【解析】句意：他的胳膊好了，他沒有必要去看醫(yī)生了。A. has not to沒有這種表達(dá)方式，故排除A； B. don't have to不必；C. haven't to沒有這種表達(dá)方式，故排除C； D. doesn't have to不必。根據(jù)His arm is all right胳膊好了，沒有必要不看醫(yī)生了。句子的主語是第三人稱單數(shù)he，所以謂語動(dòng)詞也用單數(shù)形式。故排除C。故選D。...

He had to give up the plan, ___ he?

A. did B. didn't C. does D. doesn't

B 【解析】句意：他不得不放棄這個(gè)計(jì)劃，好嗎？這里是反義疑問句，陳述部分有have to +v. (had to + v.)，疑問部分常用don't +主語（didn't +主語）。如：We have to get there at eight tomorrow, don't we?因?yàn)榍懊媸莌ad to，所以后半部分用didn't，故選B。

They had to walk here, ___ they?

A. mustn't B. did C. didn't D. hadn't

C 【解析】句意：他們不得不步行去那里，是嗎？mustn't禁止，不應(yīng)該；這里是反義疑問句，陳述部分有have to +v. (had to + v.)，疑問部分常用don't +主語（didn't +主語）。如：We have to get there at eight tomorrow, don't we?因?yàn)榍懊媸莌ad to，所以后半部分用didn't，故選C。

He had better stay here, ___ he?

A. doesn't B. don't C. hadn't D. isn't

C 【解析】句意：他最好呆在這里，好嗎？這里是反義疑問句，陳述部分有had better + v. 疑問句部分用hadn't you?如：You'd better read it by yourself, hadn't you?故選C。

You’d better ________late next time .

A. not to be B.not be C. won’t be D. don’t be

B 【解析】 試題分析：句意：你最好下一次不要遲到。had better （not）do sth最好（不要）做某事，所以選B。