friend of my grandfather’s will come tomorrow. I’m wondering how old man he might be. A.

问题补充：

friend of my grandfather’s will come tomorrow. I’m wondering how old man he might be.

A. The; a

B. The; the

C. A; a

D. A; the

答案：

A. The; a

B. The; the

C. A; a

D. A; the

解析： a friend of my grandfather’s意为“我爷爷的一位朋友”。这是一个双重所有格。由于man是第一次提及，因此也要用不定冠词。