The ________ expression on her face suggested that she _________ the _________ p

题干

The ________ expression on her face suggested that she _________ the _________ physics problem.

A．puzzling；was puzzled by；puzzled

B．puzzling；be puzzled over；puzzled

C．puzzled；be puzzled by；puzzling

D．puzzled；was puzzling over；puzzling

上一题下一题 0.64难度单项选择更新时间:2015-06-19 08:34:24

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