—Tom doesn’t like to have long hair.
—Yeah. His hair is shorter than .
A. Sam and Bill
B. Sam and Bill’s
C. Sam’s and Bill
D. Sam’s and Bill’s
网友回答
A. Sam and Bill
B. Sam and Bill’s
C. Sam’s and Bill
(答案→)D. Sam’s and Bill’s
解析：本题的含义是他的头发比Sam的头发和Bill的头发都短，表示各自所有，在英文中都要用名词所有格，故选D。