Therewasa  lookonhisfacewhenhemetthe        problem. A....

問題詳情：

There was a   look on his face when he met the         problem.

 A. confused; confusing       B. confused; confused

 C. confusing; confused       D. confusing; confusing

【回答】

 A

知識點：非謂語動詞

題型：選擇題