Personal relationships over years may be lost when we move houses.A. building upB. built

发布时间：2020-08-16 08:28:18


Personal relationships      over years may be lost when we move houses.
A. building up
B. built up
C. having built up
D. to be built up

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A. building up
(答案→)B. built up
C. having built up
D. to be built up
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