---Mary, I heard there was an explosion in Luzhou. Could you tell me how it _______?
---Sorry, I don’t know much about it either.
A. came on B. came about C. came out D. came over
---Mary, I heard there was an explosion in Luzhou. Could you tell me how it _______?
---Sorry, I don’t know much about it either.
A. came on B. came about C. came out D. came over
B