80． ______

The doctor said an operation was ______ (必要) for the patient.

79． ______

This was a time when there was no medicine for the terrible ______ (疾病) .

78． ______

They thought one of the keys to ______ (成功) was to keep on trying.

77． ______

He learns to do his best to work for the good of ______ (社会) .　

He told me he never discussed ______ (政治) with a new friend .

76． ______

The usefulness of the ______ (设备) is out of question.

Last Sunday, on my return from a weekend in the country, I took a taxi from Waterloo Station to my home in North London. We hadn't gone very far ______(26) we had to stop at one of the many traffic-lights. ______(27) as the light was changing to______(28) a policeman pulled ______(29) the door of the taxi, jumped in, shouted to the driver, “______(30) that blue car in front. It's been stolen.” He sat down on the seat beside me. Then he seemed to see me ______(31) for he said quickly but ______(32) , “Sorry sir, but I've got to catch that car.” The taxi-driver　 ______(33) the speed without saying anything. After a few hundred yards the blue car stopped at ______(34) traffic-light and we drew up ______(35)．The policeman got out, ran round to the driver' s ______(36) of the blue car, opened it and ______(37) the driver out. I couldn't hear what was said, but after a few minutes the policeman ______(38) to me and I went up to him. He asked me to help him take the car thief to the nearest ______(39)．The three of us got into the　 ______(40)．We drove off ______(41) the taxi following. I didn't like sitting next to the ______(42), who was a young, rather tough-looking man, but I had no ______(43)．______(44) it wasn't far to the police-station. When we got there the policeman took ______(45) name and address, thanked me for my ______(46) and said I could go. So I got back into my taxi and we ______(47) off again. The taxi-driver said ______(48) that that was the second time in a month he had been ______(49) to help the police, and he ______(50) it wouldn't happen again.

26．

A．until

B．because

C．after

D．before

27．

A．Just

B．Already

C．Even

D．Ever

28．

A．orange

B．yellow

C．red

D．green

29．

A．out

B．up

C．open

D．aside

30．

A．Follow

B．Catch

C．Knock

D．Watch

31．

A．for the first time

B．at first

C．in the beginning

D．for a time

32．

A．politely

B．angrily

C．luckily

D．clearly

33．

A．increased

B．kept

C．slowed

D．removed

34．

A．a

B．the

C．another

D．the other

35．

A．off

B．out

C．alongside

D．away

36．

A．seat

B．window

C．door

D．car

37．

A．brought

B．tried

C．pulled

D．asked

38．

A．smiled

B．came

C．said

D．signed (做手势)

39．

A．car-park

B．police-station

C．traffic-light

D．railway-station

40．

A．blue taxi

B．stolen car

C．passing car

D．first taxi

41．

A．with

B．by

C．of

D．in

42．

A．thief

B．driver

C．policeman

D．man

43．

A．luck

B．choice

C．reason

D．way

44．

A．Finally

B．Naturally

C．Fortunately

D．Unfortunately

45．

A．his

B．her

C．my

D．the driver's

46．

A．deed

B．action

C．help

D．words

47．

A．went

B．came

C．left

D．drove

48．

A．happily

B．angrily

C．truly

D．lively

49．

A．made

B．seen

C．begged

D．allowed

50．

A．thought

B．guessed

C．believed

D．hoped