_____ about the safety of her son, John’s mother looked upse

_____ about the safety of her son, John’s mother looked upset.
A.Concerning B.Concerned C.To concern D.Concern
飞绒 1年前 已收到1个回答 举报

anmei84199 幼苗

共回答了24个问题采纳率:95.8% 举报

B

考查固定短语。人担心什么,通常用sb. be concerned about …的结构,该短语是被动语态结构,已经形容词化。所以选B。

1年前

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