The diversity of tropical plants in the region represents a seemingly __________ source of
A. exploited
B. controversial
C. inexhaustible
D. remarkable
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Dreams are __________ in themselves, but, when combined with other data, they can tell us
A. uninformative
B. startling
C. harmless
D. uncontrollable
All of us would have enjoyed the party much more if there __________ quite such a crowd of
A. weren't
B. hasn't been
C. hadn't been
D. wouldn't be
【B12】
A. Similarly
B. In contrast
C. Furthermore
D. Instead
We should make a clear __________ between 'competent' and 'proficient' for the purposes of
A. separation
B. division
C. distinction
D. difference