成人高考

lesson 15 态剩

要

态can埽may裕must耄﹉ave to貌ought to应茫dare遥used to去had betterwould rather愿诳隙呛叨要 原 .诜穸ň校canmaymustdare呒nothave toought to直haveoughtnotused to姆式used not to也didn't use to玫媒隙啵籬ad betterwould rather姆式直had better notwould rather not.些态时某一浴

态时使

一must+have+ED执剩诳隙洌�示怨去一挚隙撇猓�示隙一

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+ED执剩诳隙头穸ň洌�示逊牟隙撇猓�嗟壁≤Ｅ�mightmay 崭小

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

诨去医耍也铱隙

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

鸺保煞也说貌

shouldought to+have+ED执剩隙示去应却没蟹穸ň示逊吮梅隆前呖为应为谩

You should have apologized to her for not soon replying to the letter. 惚居η杆滴�什么没芗时拧没么

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

摹cannot +have+ED执

He is an hour late He can have been delayed by fog. Of coursethat's a possibility.俚1小时为恕然只强狻�

The poem can not have been written by her since she was only five years old then.诗写模为时5辍�

濉�could+have+ED执省时诒示去时洌�说某驴芑虿豢逊时杀示去某拢却未

I simply can't understand how he could have made such a mistake. 壹直么岱改�

He walked therebut he could have taken a taxi. 去耍傻时全狻�

couldn't+have+ED执省示也芑没