It is years I last visited the mine . I wonder how things are getting on there .A. beforeB

发布时间：2020-08-16 13:20:52


It is years        I last visited the mine . I wonder how things are getting on there .
A. before
B. when
C. until
D. since

网友回答

A. before
B. when
C. until
(答案→)D. since
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