问题
选择题
I have two ______ . Do you know _____ ? [ ]
A. friend; they
B. friends; them
C. friends; they
D. sister; them
答案
答案：B
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I have two ______ . Do you know _____ ? [ ]
A. friend; they
B. friends; them
C. friends; they
D. sister; them
答案：B