Choose the one word or phrase (a, b, c or d ) that best completes the sentence or substitutes for the underlined word or phrase .
Does Dr. Johnson mind -----------at home if his patients need his help?
A.calling   
B.being called  
C.to be called     
D.to call

Choose the word whose underlined part is pronounced differently from that of the other words.

A.hospital              
B.holiday 
C.honest 
D.husband

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.
An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. Air pollution requires a very flexible definition that permits continuous changes. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions. 
Many of more important air pollutants, such as sulfur oxides, carbon monoxides and nitrogen oxides are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature's output of these compounds dwarfs that resulting from human activities. 
However, human production usually occurs in a localized area, such as a city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact, the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has detectable  health effects at 0. 08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however has a natural level of 0. 1 ppm and is  not usually a pollutant until its level reaches about 15 ppm. 
It can be inferred from the first paragraph that ________.    
A. the definition of air pollution will continue to change
B.most air pollutants today can be seen or smelled
C.a substance becomes an air pollutant only in cities
D.water vapor is an air pollutant in localized areas

_________(42)
A.idea 
B.view 
C.thought
D.decision

We'll play tennis and  _______ we’ll have lunch.
A.after
B.then
C.so
D.immediately

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pairs of sentences in the following questions.
Edward booked the tickets without asking us first. It was wrong of him to do so.
A.Before asking us, Edward should have booked the tickets.
B.Edward need not have asked us before he booked the tickets.
C.Edward booked the tickets after he had asked us about them.
D.Edward oughtn’t to have booked the ticket without asking us first.

I told him _______ the word to Jane somehow that I _______ to reach her during the early hours.  
A.passing / will try 
B.he will pass / tried
C.to pass / would be trying       
D.he passed / have tried

Don't walk too fast. I can't keep_________you.
A. on to       
B.on with 
C.up to         
D.up with

Read the following passage and mark the letter A,B,C or D on your answer sheet to indicate the correct answer to each of the question.
Different relationships affect teenagers in various ways. Friends impact teenagers almost the same amount as their parents. Teenagers go to their friends for help or to ask questions that they could not ask their parents about. Most of the time their friend give them good advice. In most cases, they tell their friends how to dress and act when being around certain people.
Love relationships just make it even harder for a teenager to get a good education. Some start to fail in school because they are hanging out with their boyfriend or girlfriend instead of doing their work.
Parents have a big influence on teenagers because their children look up to them and the majority of them grow up to act and do things just like their parents did with them. Children who have experienced a family break-up may have lower achievements than children brought up in an intact family.
As previously stated, teenagers are affected by many relationships which involve their friends, family, and their love relationships. The relationships affect them so much that most teenagers change their ideas about how they should live their lives in a different way and to change their future goals. They should be influenced to help themselves or to help others.
Teenagers go to their friends in order to ______.
A.impact them in various ways and the same amount.
B.ask how to dress when being around certain people.
C.have different relationships that their parents can’t offer.
D.ask for help or advice that their parents can’t give them.

A.intend   
B.medal                      
C.compete                  
D.defend