— Jane and Joan have been friends for fifty years.— No wonder they have such a lot in .A.

问题补充：

— Jane and Joan have been friends for fifty years.

— No wonder they have such a lot in .

A. ordinary

B. average

C. common

D. normal

答案：

A. ordinary

B. average

(答案→)C. common

D. normal

解析：考查固定词组。固定词组have sth in commom with sb与某人有共同之处；句意：—Jane和Joan已经是50年的好朋友了。—难怪他们有如此多的共同之处了。故C正确。