A：动+介+动名词
B：名词+介词to。
下面大纲中所列短语中的tof为介词：
contrary to与相反
opposed to反对
be used to习惯于
resort to诉诸于
be accustomed to习惯于
be committed to委身于
with regard to关于
contribute to贡献等
with a view to为起见
in contrast to与成对比
be exposed to/be dedicated to致力=
as to关于
be devoted to献身于
react to对反应
look forward to期待
C：动+副+介+动名词
Look forward to her coming soon.
D：形容词+介词+ing
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