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___ reach speeds of about 145 km per hour.
A with, in, must C at, upon, are able
B at, on, may D with, with, ought
10.____ the land needed for growing food and housing
people, large areas of the earth's landscapes____ com
pletely transformed.
A Providing, had
B Having transformed, has been
C To provide, have
D To provide, have been
11. Antarctica is the coldest, ____, highest, ___, and____
discovered continent.
A most windy, remotest, most recent B windiest, most remote, most recently C windiest, remotest, recentlier D most windy, most remote, much recently
12. The general proportion that___ between certain groups
of animals is readily seen. Large animals____ so abun
dant as small ones.
A must be obtained, cannot be
B should have been obtain, might not be
C is to be obtained, cannot have been
D must have been obtained, must not have been
13. The earth is____ to the sun in January and_____ away
in July, so the summer is_____ than the winter in the
northern hemisphere.
A closest, furthest, longest
B closer, further, the longest
C closest, farthest, longer
D closest, further, longest
14. The total volume of the ice sheet__ Antarctica is
estimated___ 29 million cu km, or about 90___ of
the world's ice.
A covering, being, percents
B covered, be, per cents
C to cover, to be, percentage
D covering, to be, percent
15. Sheep _____ probably domesticated about 11,000 years
ago in what is now northern Iraq.
A was C has been
B have been D were
