单项选择题

This book will show you()can be used in other contexts

A. how you have observed
B. how what you have observed
C. that you have observed
D. how that you have observed

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We must be patient ()children.

A. under
B. to
C. with
D. of
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When I took his temperature, it was two degrees above ()

A. normal      
B. ordinary   
C. average      
D. regular
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