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˸߿Ӣ﷨ɼϰ

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̬canܣmayԣmust룩have toòought toӦãdareңused toȥhad betterwould ratherԸڿ϶Ǻ߶Ҫ ԭ .ڷ񶨾Уcanmaymustdare߼nothave toought toֱhaveoughtnotused toķʽused not toҲdidn't use toõý϶ࣻhad betterwould ratherķʽֱhad better notwould rather not.Щ̬ʱijһԡ

̬ʱʹ

һmust+have+EDִʣڿ϶䣬ʾԹȥһֿ϶Ʋ⣬ʾ϶һ

1 It around nine o'clock when I drove back home because it was already dark.

A had to be B must have been C was to be D must be

2 John's score on the test is the highest in the class

A he should study last night

B he should have studied last night

C he must have studied last night

D he must had to study last night

3 After searching A for evidence in the housethe police concluded B that the thief must have come in C through the window and stole D the silver while the family was asleep.

may might+have+EDִʣڿ϶ͷ񶨾䣬ʾѷIJ϶Ʋ⣬൱ڡܣţmightmay ոС

She might have gone to see her doctor last week but I am not sure.

ڻȥҽˣҲҿ϶

Don't worry your husband may not have been hurt seriously.

𼱣ɷҲ˵ò

shouldought to+have+EDִʣ϶ʾȥӦȴûз񶨾ʾѷ˱÷¡ǰ߿ΪӦΪá

You should have apologized to her for not soon replying to the letter. 㱾ӦǸ˵Ϊʲôûܼʱšûô

4 You yesterday if you were really serious about your work.

A ought to comeB ought to be comingC ought to have comeD ought have come

ġcannot +have+EDִ

He is an hour late He can have been delayed by fog. Of coursethat's a possibility.ٵ1СʱΪˡȻֻǿ⡣

The poem can not have been written by her since she was only five years old then.ʫдģΪʱ5ꡣ

塢could+have+EDִʡʱڱʾȥʱ䣬˵ij¿ܻ򲻿ѷʱɱʾȥij£ȴδ

I simply can't understand how he could have made such a mistake. Ҽֱô᷸Ĵ

He walked therebut he could have taken a taxi. ȥˣɵʱȫ⡣

couldn't+have+EDִʡʾҲܻû

I couldn't have called you. I wasn't near a telephone. Ҳܸ绰Ҹûе绰

5 We didn't see him at the lecture yesterday.He it.

A mustn't attendedB couldn't have attendedC would have not attendedD needn't have attended

needn't+have+EDִʣʾԹȥȴˣΪʵء

6 You all these parcels yourself.The shop would have delivered them if you had asked a shop assistant.

A didn't need to carryB needn't have carriedC needn't carryD didn't need carry

ߡused to ʾȥϰ߶״̬Ѳڣڷ񶨳Уһdidn't use toҲused not toʾáDiduse toused toneveroftenalwaysáעused tobe used toIJͬ߱ʾbe accustomed to ϰij״̬ҸʻINGʽused toӶԭΣԱȽ

He used to drink. ʾȥȾơڲˡ

He is used to wine He is used to drinking wine at each meal.

ʾϰߣÿٷȵѾơ

ˡhad betterʾӶԭΣʽΪhad better notԭ

You had better not follow his behavior. 㲻Ҫѧ

šwould rather ˼ǡԸʾѡ÷һڿ϶кֱӸԭΣ񶨾would rather not would rather notԭΣ߿ԸӴӾ䣬ôӾνﶯһȥʽʾwould ratherʾѡ߿ɸthan

She would rather sleep than talk rubbish. Ը˯Ըġ

7 Did you criticize him for his mistakesYesbut it.

A I'd rather not doB I'd rather not doingC I'd rather not have doneD I'd rather not did

ע would ratherhad ratherʾԸ÷Ҳû𡣵˵would ratherhad ratherȫһLongman Dictionary of Comtemporary English ˵һ˵顣ʵhad ratherִ׼ӢмѾˡǿ˵DZȽҪģΪһ㿼Ϊ׼ӢDzhad ratherġ

ʮ

1 BΪȷ𰸡2 CΪȷ𰸡

3 DΪstolen.CDDzеνD൱must have stolen.

4 CΪȷ𰸡5 BΪȷ𰸡6 BΪȷ𰸡7 CΪȷ𰸡


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