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.

Biogas can be utilized for electricity production, cooking, space heating, water heating and process heating.

It is very important for a firm or a company to keep _____ the changes in the market.

No one cares about the starving people _____.

We couldn’t help laughing when he took _____ his teacher so well.

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions

_____ are unpleasant, but it will be nice when we get into the new house.

- “ _______ .”

- “Never mind, better luck next time.”

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.

Usually the climate in mountainous areas becomes much windy at higher altitudes.