问题
选择题
31. An e-pal, as you have known, means a friend ______ you write e-mails.
A．to which
B．for whom
C．about whom
D．to whom
答案
答案：D
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31. An e-pal, as you have known, means a friend ______ you write e-mails.
A．to which
B．for whom
C．about whom
D．to whom
答案：D