D) it will not have much commercial value
65. What do the environmentalists mean by saying Not so fast ?
A) Oil exploitation takes a long time
B) The oil drilling should be delayed
C) Don t be too optimistic
D) Don t expect fast returns
66. It can be learned from the passage that oil exploitation beneath ANWR s frozen earth ________.
A) remains a controversial issue
B) is expected to get under way soon
C) involves a lot of technological problems
D) will enable the U.S. to be oil independent
Unit 15
57. A 58. B 59. D 60.C 61. D
62. C 63. D 64. B 65.A 66. B
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