中文谷Youseemtobe
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问题详情：
You seem to be _____ busy. What are you getting at?
A. kinds of B. kind of C. a kind of D. a kind
【回答】
B
知识点：介词
题型：选择题
标签：
Youseemtobe
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问题详情：
You seem to be _____ busy. What are you getting at?
A. kinds of B. kind of C. a kind of D. a kind
【回答】
B
知识点：介词
题型：选择题
