A. confine
B. conceal
C. convention
D. concentrate
A. booked
B. missed
C. described
D. pronounced
A. engineer
B. understand
C. referee
D. mechanic
A. oceanic
B. environment
C. reality
D. psychologist
A. should have done
B. may have done
C. need to have done
D. must have done
A. whose sick sister
B. whose sister sicked
C. who his sister is sick
D. whose sister was sick
A. No sooner
B. Only
C. Not until
D. Just before
A. satisfied
B. satisfactorily
C. satisfying
D. satisfactory
A. wouldn’t be
B. won’t be
C. can’t be
D. wouldn’t have been
A. the
B. a
C. an
D. x
A. about
B. in
C. on
D. at
A. lose touch with
B. make room for
C. pay attention to
D. take notice of
A. mustn’t
B. needn’t
C. mightn’t
D. may not
A. discarded
B. accompanied
C. performed
D. played
A. extinction
B. biodiversity
C. habitat
D. conservation
A. urged
B. free
C. required
D. suggested
A. damaged
B. loaded
C. large
D. moving
A. openly criticized
B. publicly supported
C. rightly claimed
D. publicly said
A. do harm to
B. set fire to
C. give rise to
D. make way for
A. with
B. her cousins
C. are
D. to attend
A. having
B. their
C. being painted
D. construction
A. in which
B. in the water
C. by
D. with
A. Really? They are
B. Thank you, it is nice of you to say so
C. Can you say it again
D. I love them, too
A. There's no doubt about it
B. It's a breathtaking view
C. But you're right
D. You lied to me
A. The wonders of the ancient world
B. Three-hundred-year-old-forests
C. The size of the bristlecone pine
D. An amazingly enduring tree
A. on the same block as
B. of approximately
C. located close to
D. with the friendliness of
A. are quite accurate in their estimates of the ages of trees
B. do not really have any idea how old the oldest trees on Earth are
C. have two to three hundred trees in their neighborhoods
D. can name some three-hundred-year-old-trees
A. Three hundred thousand years old
B. Five hundred years old
C. Two hundred years old
D. Five thousand years old
A. unrecognizable
B. incredible
C. towering
D. ancient
A. extremely tall
B. believed to be strong
C. known to be old
D. far away
A. It can be two to three hundred feet tall.
B. It is never more than five meters in height.
C. It is as tall as the great pyramids.
D. It is short in comparison to many other trees.
A. is found only in the bristlecone pine
B. helps stop rot from starting
C. assists the tree trunks to develop
D. flows from the branches to the tree trunk
A. the Earth’s surface
B. the sea
C. a tree
D. the rain forests
A. prejudice
B. concern
C. disadvantage
D. attitude
A. Ocean life is highly adaptive.
B. More attention needs to be paid to preserving ocean species and habitats.
C. Ocean life is primarily composed of plants.
D. The sea is highly resistant to the damage done by pollutants
A. They are approximately the same size.
B. Both have many different forms of life.
C. They share many similar species.
D. Most of their inhabitants require water.
A. birds
B. bacteria
C. mammals
D. insects
A. It’s 100 times greater than land.
B. It contains more species than land.
C. It contains a vast majority of life on Earth.
D. It occupies one-third of the Earth’s surface.
A. there are too many insects to make meaningful distinctions
B. marine life-forms reproduce at a faster rate
C. more phyla and classes of life are represented in the sea
D. many insect species are too small to divide into categories
A. The President congratulated that the players had won the cup.
B. When they won the cup, the players had been offered some congratulations from the President.
C. The President would offered the players congratulations if they won the match.
D. The President congratulated the players on their winning the match.
A. When you are riding a motorcycle, wearing a helmet is not a must.
B. You needn't wear a helmet whenever you are riding a motorcycle.
C. Helmets must be worn at all times when you are riding a motorcycle.
D. If you are riding a motorcycle, you needn't wear a helmet.
A. Taking photograph inside the palace is strictly forbidden
B. It’s not advisable to try to bring a camera into the palace
C. We were only able to take photos of the palace exterior
D. No one has ever taken a photo inside the palace
A. No matter how hard my brother tried, he could hardly pass the driving test.
B. Although my brother didn’t try hard to past the driving test, he could pass it.
C. Despite being able to pass the driving test, my brother didn’t pass it.
D. My brother tried very hard, so he passed the driving test satisfactorily.
A. Ann jogs every morning and it is very good for her health.
B. Ann jogs every morning, which is very good for her health.
C. Ann jogs every morning and then it is very good for her health.
D. Ann jogs every morning that it is very good for her health.
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