The student, who about what to do next, turned to his teacher for help． [ ] A． w
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The student, who ________ about what to do next, turned to his teacher for help．
[]A．was puzzling
B．was puzzled
C．is puzzling
D．puzzled
试题答案
答案：B
解析：puzzled通常形容人，意为“使困惑的”，可以和be动词构成系表结构；puzzling通常形容物，意为“令人困惑的”。