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

Traffic fumes contribute greatly to air ______________ in this city.

For each question, combine two sentences using the First Conditional or Second Conditional.

We should turn off the lights when we aren’t using them. We save electricity.

→ .............................

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

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

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

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.

Mark the letter A, B, C or D on your answer sheet to indicate the word or phrase that is OPPOSITE in meaning to the underlined part in each of the following questions.