问题补充：
Put away your school things．Your stationery mustcarefully．
A. be taken good care
B. be taken good care of
C. take good care
D. take good care of
答案：
A. be taken good care
(答案→)B. be taken good care of
C. take good care
D. take good care of
解析：本题考查被动语态，句意：把你的学习用品放好。你的词典必须得到仔细的保养。结合语境可知句子主语为动作对象，故用被动语态。选项A缺少介词of，故选B
