Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
______ humans, dolphins use a system of sounds and body language to communicate, but understanding their conversations is not easy for humans.
A.Alike                      
B.Unlike                     
C.Dislike                    
D.Like

She has to pass all her exams or _______she would have no holiday.
A.instead
B.else
C.therefore
D.though

A.journalist  
B.character  
C.position    
D.salary

If I_________you, I’d take some rest before the exam tomorrow. 
A.is
B.are      
C.were
D.would be

_______(17)
A.research
B.impatience
C.concern
D.stimulus

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
I must have been                when you called. I did not hear the phone.
A.sleepy
B.asleep
C.slept
D.sleep

It was announced that neither the passengers nor the driver _________in the crash.    
A.are injured         
B.was injured   
C.were injured   
D.have been injured

Which of the following statements is false?
A.Every national park in the US has its special features.
B.Everglades Park has a cold climate.
C.The ruins of an Indian civilization are being preserved.
D.Some of the dwellings in Mesa Verde are accessible only by ladder.

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.
The shop assistant was totally bewildered by the customer’s behavior.
A.disgusted                
B.puzzled                          
C.angry                      
D.upset

 “a hormone with which is secreted by the brain’s pineal gland in response to darkness”
A.with
B.is
C.by
D.in