单项选择题

Once ______, the information superhighway will drastically change the lifestyle of all the residents on this island.

[A] it being completed
[B] it completed
[C] completed
[D] it completes

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单项选择题

In such a(an) ______ competition, not few businessmen went bankruptcy.

[A] intense
[B] tense
[C] intensive
[D] extensive

单项选择题

Postal ______ are determined by the class and weight of the parcel mailed.

[A] taxes
[B] payment
[C] fees
[D] premium

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