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??请详细解释一下每个选项。
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??请详细解释一下每个选项。