18.
A.worker                                
B.faucet                                 
C.classmate                            
D.enjoy

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.
The substance is very toxic. Protective clothing must be worn at all times.
A.Since thesubstance is very toxic, so protective clothing must be worn at all times.
B.So toxic is the substance that protective clothing must be worn at all times.
C.The substance is such toxic that protective clothing must be worn at all times.
D.The substance is too toxic to wear protective clothing at all times.

Unselfishness is the very essence of friendship.
A.important part
B.difficult part
C.romantic part 
D.interesting part

(29)______
A.long                   
B.in length    
C.in long        
D.longer

________ (5)
A.These qualities are perceived as being mainly masculine
B.These positions are held by females
C.One possible reason for this is that of tradition
D.Although women are not as decisive as men, they still play an important role in social work

He eats nothing __________hamburgers.          
A.but
B.unless
C.despite
D.apart

___________(34)
A.marks    
B.signs  
C.signals   
D.symbols

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 36 to 42.
Different cultures follow their own special customs when a child's baby teeth fall out. In Korea, for example, they have the custom of throwing lost teeth up on the roof of a house. According to tradition, a magpie will come and take the tooth. Later, the magpie will return with a new tooth for the child. In other Asian countries, such as Japan and Vietnam, children follow a similar tradition of throwing their lost teeth onto the roofs of houses.
Birds aren't the only animals thought to take lost teeth. In Mexico and Spain, tradition says a mouse takes a lost tooth and leaves some money. However, in Mongolia, dogs are responsible for taking teeth away. Dogs are highly respected in Mongolian culture and are considered guardian angels of the people. Tradition says that the new tooth will grow good and strong if the baby tooth is fed to a guardian angel. Accordingly, parents in Mongolia will put their child's lost tooth in a piece of meat and feed it to a dog.
The idea of giving lost teeth to an angel or fairy is also a tradition in the West. Many children in Western countries count on the Tooth Fairy to leave money or presents in exchange for a tooth. The exact origins of the Tooth Fairy are a mystery, although the story probably began in England or Ireland centuries ago. According to tradition, a child puts a lost tooth under his or her pillow before going to bed. In the wee hours, while the child is sleeping, the Tooth Fairy takes the tooth and leaves something else under the pillow. In France, the Tooth Fairy leaves a small gift. In the United States, however, the Tooth Fairy usually leaves money. These days, the rate is $1 to $5 per tooth, adding up to a lot of money from the Tooth Fairy!
(Source: Reading Challenge 2 by Casey Malarcher & Andrea Janzen)
According to paragraph 2, parents in Mongolia feed their child's lost tooth to a dog because             .
 
A.they hope that their child will get some gifts for his or her tooth
B.they know that dogs are very responsible animals
C.they believe that this will make their child's new tooth good and strong
D.they think dogs like eating children's teeth

Choose the option A, B, C or D corresponding to the best sentence that is made up from the sets of word
It/ very kind / you / help me / start / engine.
A.It’s very kind for you to help me start the engine.
B.It’s very kind to you to help me start the engine.
C.It’s very kind that you help me start the engine.
D.It’s very kind of you to help me start the engine.

The word ‘hindrance’ is closest meaning to _______ .
A.procedure
B. encouragement   
C.assistance 
D.interference