题目内容
The ________ expression on his face suggested that he was not able to work out the ________ problem.
[ ]
A.puzzling; puzzling
B.puzzled; puzzled
C.puzzling; puzzled
D.puzzled; puzzling
答案:D
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题目内容
The ________ expression on his face suggested that he was not able to work out the ________ problem.
A.puzzling; puzzling
B.puzzled; puzzled
C.puzzling; puzzled
D.puzzled; puzzling