（   ） 55． A． careful               B． carefully               C． proper           D． properly

A

Learning How to Learn$22

Children who read this book show great interest in study．Many pictures will help them understand it easily and quickly．

Basic Study Guidebook $36

Read this book and learn:

What the three barriers （障碍） to study are and what to do about them

What to do if you are tired of a subject

Children read it to improve the ability to study．

How to Use a Dictionary Picture Book for Children $35

Read this book and learn:

How to look up words in a dictionary

What the different marks in a dictionary mean

How to use a dictionary to pronounce words correctly

（   ） 54． A． on               B． of                       C． at                  D． by