World war I in 1937.A. has brokenB. was brokenC. broke outD. was breaking out

发布时间：2020-08-16 07:27:36

World war I     in 1937.
A. has broken
B. was broken
C. broke out
D. was breaking out

网友回答

A. has broken
B. was broken
(答案→)C. broke out
D. was breaking out
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