111.I met ____ in the street yesterday,who had just come back from Japan.

A.an old friend of my father

B.an old friend of my father's

C.an my father's old friend

D.one of my father's old friend

112.___ is so high that I'm afraid I can't afford it.

A.This computer

B.This computer's price

C.The price of this computer

D.The price of this computer's

111.答案是B，

此题考查名词的双重所有格。

112.答案是C,

此题考查of所有格，除地点，时间，国家等名词外的无生命事物的所有格一般用of所有格表达。