The students were ____ over the ____ problem, listening to the teacher with a ____ expression on their faces.
A. puzzled; puzzling; puzzling B. puzzled; puzzling; puzzled
C. puzzling; puzzling; puzzled D. puzzling; puzzled; puzzling
科目:高中英語 來源: 題型:
On the street I saw a studen _____ I thought was English.
A. whom B. who
C. the one D. he
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