Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
Don’t be late for the class often, _______ people will think you are a disobedient student.         
A.otherwise                            
B.if not         
C.or so     
D.unless

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
Scarcely had he stepped out of the room ______ he heard a loud laughter within.           
A.until                                    
B.then                         
C.than
D.when

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
Air pollution is getting ________ serious in big cities in the world.       
A.more and more    
B.the most and the most    
C.most and most                     
D.the more and the more

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
He asked me _______ that film the night before.
A.if had I seen      
B.that I saw 
C.had I seen 
D.if I had seen

Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in the position of primary stress in each of the following questions.

A.workforce               
B.bamboo                   
C.exist
D.survive

What do people jog______?
A.by
B.on
C.to
D.for

He talked as if he (know) ____where she was
A.knew
B.knows
C.has known
D.had known

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word for each of the blanks from 28 to 32.
            In the early twentieth century, an American woman named Emily Post wrote a book on etiquette. This book explained the proper behavior Americans should follow in many different social (28)______, from birthday parties to funerals. But in modern society, it is not simply to know the proper rules for behavior in your own country. It is necessary for people (29)______ work or travel abroad to understand the rules of etiquette in other cultures as well.
Cultural (30)______ can be found in such simple processes as giving or receiving a gift. In Western cultures, a gift can be given to the receiver with relatively little ceremony. When a gift is offered, the receiver usually takes the gift and expresses his or her thanks. (31)______, in some Asian countries, the act of gift-giving may appear confusing to Westerners. In Chinese culture, both the giver and receiver understand that the receiver will typically refuse to take the gift several times before he or she finally accepts it. In addition, to (32)______ respect for the receiver, it is common in several Asian cultures to use both hands when offering a gift to another person.
(Source: Reading Advantage by Casey Malarcher)
(29)  
A.where                     
B.who                                    
C.which                     
D.whose

_______(54)
A.in
B.at
C.by
D.on

Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

A.sanctuary
B.solution
C.potential
D.infectious