I think Father would like to know I’ve been up to so far, so I decide to send him a quic

发布时间：2020-08-17 13:53:05

I think Father would like to know      I’ve been up to so far, so I decide to send him a quick note.
A. which
B. why
C. what
D. how

网友回答

A. which
B. why
(答案→)C. what
D. how
解析：根据宾语从句中的谓语部分be up to(正在做)可知此处缺宾语，填上what 后表示“正在做什么”。
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