The authorities _______ actions to stop illegal purchase of wild animals and their associated products effectively. However, they didn’t do so. 
A.must have taken 
B.had to take 
C.needed have taken 
D.should have taken

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the followings.
Birth ______is an official document that shows when and where a person was born.
A.degree                           
B.certificate                       
C.permit                         
D.paper

______(3)
A.longer
B.more
C.longest
D.Both A and B

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
Facebook.com’s server IP address could not find in Google Chrome browser because of the error of Internet connection.
A.Facebook.com’s
B.could not find
C.because of
D.Internet connection

Mark the letter A, B, C or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.
It's quite disappointing that some people still turn a blind eye to acts of injustice they witness in the street.
A.take no notice of       
B.have no feeling for
C.show respect for       
D.pay attention to

Should the need arise, you can ontact me on this number.
A. I'm available, so contact me on this number.   
B.Under no circumstances should you contact me on this number.  
C.If you find it necessary, you can contact me on this number.  
D.You can contact me on this number at any time.

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

A. business
B.opponent 
C.specialize 
D.agency

Choose the best answer by circling its corresponding letter A, B, C or D.
Let's go out now, ______? The weather is so nice!
A.won't you
B.shan't we
C.will you
D.shall we

According to the passage, how does food production contribute to global warming?
A.Producing more food leads to growth in the world population.
B.Food production uSes many chemicals which add to global warming.
C.Food production requires that the forests be cleared to create farmland.
D.Food production decreases the ability of the air to release heat.

Read the following passage and mark letter A, B, C or D to indicate the correct answer to each of the questions that follow.
Solar energy is a long lasting source of energy which can be used almost anywhere. To generate solar energy, we only need solar cells and the sun. Solar cells can easily be installed on house roofs, so no new space is needed and each user can quietly generate their own energy. Compared to other renewable sources, it also possess many advantages. Wind and water power rely on turbines which are noisy, expensive and easy to break down. Solar cells are totally silent and non-polluting. As they have no moving parts, they require little maintenance and have a long lifetime.
However, solar energy also has some disadvantages. We can only generate solar energy during daytime because the system depends on sunlight. Besides, solar cells require large area to work effectively. The main disadvantage of solar energy is that it costs about twice as much as traditional sources such as coal, oil, and gas. This is because solar cells are expensive. Scientists are hoping that the costs of solar cells will reduce as more and more people see the advantages of this environmentally friendly source of energy.
Which of the following is the MAIN disadvantage of solar energy mentioned in the passage?
A.Solar cells require large areas to operate. 
B.It depends on sunlight.
C.It is expensive.   
D.It is unfriendly to the environment.