问题补充:
With the rapid growth of Cyberspace, everyone should be encouraged to use Internet as tool, making it a trend to study in virtual schools in the future.
A. 不填;a
B. 不填; the
C. the; the
D. the; a
答案:
A. 不填;a
B. 不填; the
(答案→)C. the; the
D. the; a
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