问题描述：
3、This book will show you ________ can be used in other contexts. A. how you have observed B. what
解释一下
7. This book will show you __________ can be used in other contexts..
A. how you have observed
B. what you have observed
C. that you have observed
D. how that you have observed 上面的那个不全的呢哈
解释一下
7. This book will show you __________ can be used in other contexts..
A. how you have observed
B. what you have observed
C. that you have observed
D. how that you have observed 上面的那个不全的呢哈
问题解答：
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