Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Air pollution is getting ________ serious in big cities in the world.
A.more and more
B.the most and the most
C.most and most
D.the more and the more

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
He asked me _______ that film the night before.
A.if had I seen
B.that I saw
C.had I seen
D.if I had seen

______(28)
A.given
B.giving
C.gave
D.not giving

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Richard Byrd was ______ first person in history to fly over _______ North Pole.
A.the – a
B.the – x
C.the – the
D.x - x

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Of all the world’s major oceans, Arctic Ocean is the shallowest.
A.an
B.the
C.a
D.x

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
If I won the lottery, I __________ you half the money.
A.had given
B.give
C.gave
D.would give

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Unless you ______________ all of my questions, I can’t do anything to help you.
A.answered
B.answer
C.don’t answer
D.are answering

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
If the world’s tropical forests continue to disappear at their present rate, many animal species _____ extinct.
A.became
B.will become
C.would become
D.would have become

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
John ________ taking the money, but nobody believed him.
A.denied
B.apologized
C.refused
D.warned

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
- Jean: “Why didn’t you tell me about the plans for the merge?”

- Jack: “I would have told you _______.”
A.if you asked me to
B.had you asked me to
C.you had asked to me
D.you were asking me