问题

The ______ look on the student’s face suggested that your ______ question made him ______.
A:puzzling; puzzled; puzzled
B:puzzling; puzzling; puzzled
C:puzzled; puzzled; puzzling
D:puzzled; puzzling; puzzled
B:puzzling; puzzling; puzzled
C:puzzled; puzzled; puzzling
D:puzzled; puzzling; puzzled
正确答案是: