professor lee’s book will show you ____ can be used in other contexts.

问题描述:

professor lee’s book will show you ____ can be used in other contexts.
A:that you have observed B:that how you have obderved
C:how that you have observed D:how what you have obderved

show you [how(what you have observed)can be used in other contexts]
这样看是否清楚点?