I wonder how it that they made such rapid progress.A. came aboutB. came outC. came onD. c

发布时间：2020-08-16 12:21:40


I wonder how it      that they made such rapid progress.
A. came about
B. came out
C. came on
D. came up

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(答案→)A. came about
B. came out
C. came on
D. came up
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