问题
选择题
The fact _____ the mainland of Great Britain is made up of three kingdoms _____still unknown to many.[ ]
A. which, is
B. that, is
C. which, are
D. that, are
答案
答案：B
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The fact _____ the mainland of Great Britain is made up of three kingdoms _____still unknown to many.[ ]
A. which, is
B. that, is
C. which, are
D. that, are
答案：B