26. With age, the mineral content of human bones decreases, them more fragile.A. makeB. t

发布时间：2020-08-16 07:18:35


26. With age, the mineral content of human bones decreases,      them more fragile.
A. make
B. to make
C. made
D. Making

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A. make
B. to make
C. made
(答案→)D. Making
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