问题描述：
I can’t send an e-mail.Would you please show me()it?
I can’t send an e-mail.Would you please show me ____ it?
A.do B.doing C.what to do D.How to do
I can’t send an e-mail.Would you please show me ____ it?
A.do B.doing C.what to do D.How to do
问题解答：
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