题目内容
There was a _____ look on his face. He found what the expert said too difficult to understand.
| A.puzzle | B.puzzling | C.puzzled | D.to puzzle |
C
解析
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题目内容
There was a _____ look on his face. He found what the expert said too difficult to understand.
| A.puzzle | B.puzzling | C.puzzled | D.to puzzle |
C
解析