The old man has ---on his nose.A.a glassB.a glasse

问题补充：

The old man has ---on his nose.A.a glassB.a glassesC.a pair of glassesD.a pair of glass

答案：

C.a pair of glasses

======以下答案可供参考======

供参考答案1:

C ,a pair of glasses ，一副眼镜

供参考答案2:

选C，因为眼镜不能戴一个吧？只能用一副眼镜

供参考答案3:

C ,a pair of glasses ，一副眼镜