*Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35.

  Bacteria are the smallest known living things with a cellular structure. These colorless, one-celled micro-organisms exist (31)________organic matter is found: in soil, in water and in the air. Since most of them have no chlorophyll, they cannot use light energy to synthesize their food, (32)_________green plants do.They must get their food in other ways. In this, bacteria resemble animals. However, since they are enclosed in a cell wall, they can only (33)_________dissolved food like plants do. Although most bacteria do not contain chlorophyll, some of them can make their own organic food from simple inorganic (34)________. They do not, however, use light energy for this purpose. Others get ready-made food from dead plants and animals. Still others are parasites. Parasites are (35)________to enter other living organisms and take food from them. In doing so, they often cause diseases or the death of their hosts.

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 Điền vào số 31

* Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

 The government must take_______action against environmental pollution.

* Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

 One member of the project group_______the boss and was fired immediately.

* Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

 _________this book by the time it is due back to the library?

* 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 question.

More complex animals gradually evolved from these very simple creatures.

*Mark the letter A, B, C, or I) on your answer sheet to indicate the wordfs) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

I’d go mad if I had to do a dead-end job like working on a supermarket checkout.

*Mark the letter A, B, C, or I) on your answer sheet to indicate the wordfs) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

Feel free to bring along your significant other to the party.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

 Congress has decreed that the gasoline tax__________.