问题补充：
The value of life lies not in the length of days ，but in the use we them.
A. make
B. made of
C. made
D. make of
答案：
A. make
B. made of
C. made
(答案→)D. make of
解析：考查词组：make use of利用，lie (in) 在本句中表示“在于”，作谓语。前半句完整表达应为“The value of life doesn lie in the length of days”,“生命的价值不在于其长短”；后半句中“we make of them”做“the use”的定语从句，“而在于我们怎么来利用它。”选D。
