The _________ look on his face suggested that what the monitor said was ___________.
A.puzzling; puzzled
B.puzzled; puzzled
C.puzzled; puzzling
D.puzzling; puzzling
答案:C
考查puzzled与puzzling的区别,puzzled 感到困惑的,修饰人或与人有关的眼神、嗓音、表情等等,puzzling 令人困惑的,修饰物,句意:他脸上困惑的表情暗示了班长所说的话令人困惑。故选C。