问题
选择题
________is impossible to learn a foreign language well in such a short time.Rome was not built in one day.[ ]
A. This
B. It
C. That
D. Which
答案
答案：B
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________is impossible to learn a foreign language well in such a short time.Rome was not built in one day.[ ]
A. This
B. It
C. That
D. Which
答案：B