The first photo of a black hole was shown to the whole world ______ April, 2019. We are now closer t...
2022-08-28 03:52:39 195次 2019年江苏省集团中考二模英语试卷 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
The first photo of a black hole was shown to the whole world ______ April, 2019. We are now closer to solving the basic questions about universe.
A.in B.on C.at D.for
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