Choose the best answer to complete the following sentences.
Helen couldn’t get the experiment to work for ages, but in the................it was fine.
A.last      
B.future     
C.end   
D.opinion

II. Mark the letter A, B, C, or D to indicate the word that dfffers from the other three in the position of the primary stress in each of the following questions.

A.organization                        
B.enthusiastic             
C.compassionate        
D.qualification

__________(5)
A.look
B.throw
C.like
D.love

According to the last paragraph, _______.
A.species extinction has no relationship to human beings
B.what threaten plants and animals can do nothing to human beings
C.human beings depend on natural resources to survive
D.not every, species has a role in the circle of life.

 Without gravity, everything would float.
A.If there had been no gravity, everything would float.
B.If there had been no gravity, everything would have floated.
C.If there was no gravity, everything would float.
D.If there was no gravity, everything would have floated.

Mark the letter A, B, C, or D to indicate the word that differs from the other three in the position of primary stress in each of the following questions.

A.competent
 
 
B.computer
C.compliance
D.commuter

Select the synonym of the following bold and underlined word in each sentence in the unit
We read newspapers and magazines which have been produced on computers.
A.born 
B.shaped 
C.begun 
D.manufactured

Choose the best answer among a, b, c, or d.
I was just ......... to go out when you telephoned
A.around
B.about
C.thinking
D.planned

It was only _____ he told me his surname that I realized that we had been to the same school.
A.then   
B. when 
C.until   
D.as soon as

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.
"What were you doing last night, Mr John?" asked the police.
A.The police asked Mr John what he had been doing the night before.
B.The police asked Mr John what had he been done the night before.
C.The police asked Mr John what he had been done the night before.
D.The police asked what were you doing last night, Mr John.