Because of ________ mail we receive, we may not be able to reply to your letter．Please remember to include your full name in your letter．A.a great many ofB.a large number ofC.the large amount ofD.a great plenty of
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C解析句意为“由于我们收到的邮件数量太大，我们可能不能回信。请记住在你的信中要有完整的姓名”。A项和B项与可数名词复数连用；D项本身形式错。