问题描述：
帮忙解答一道非谓语动词选择.
The policeman put down the phone ,___ with a smile on his face .
A.satisfied B.satisfying C.to be satisfied D.having satisfied.
为什么不选B?不是现在分词作伴随状语?
The policeman put down the phone ,___ with a smile on his face .
A.satisfied B.satisfying C.to be satisfied D.having satisfied.
为什么不选B?不是现在分词作伴随状语?
问题解答：
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