﹣When did the earthquake in Lushan happen?
﹣It happened __________ 8:02 __________ the morning of April 20, 2013．
A. on; in B. at; on C. at; in
﹣When did the earthquake in Lushan happen?
﹣It happened __________ 8:02 __________ the morning of April 20, 2013．
A. on; in B. at; on C. at; in
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