◎ 题干
I don't know _____ Susan will come tomorrow. _____ she comes, I'll tell you.

[     ]

A. if; whether
B. whether; whether
C. whether; If
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“I don't know_____ Susan will come tomorrow. _____she comes, I'll tell you.[ ]A. if; whether B. whether; whether C. whether; If …”主要考查了你对  【从属连词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。