i didn’t hear the clock ____.横线是填go off还是went off还是going off

i didn't hear the clock ____.横线是填go off还是went off还是going off,或是两个都行?

go off.hear + 宾语.+do 表示听到某人做某事
再问： 那i hear you are working in a pub怎么解释呢?为什么这又用ing?
再答： i hear (you are working in a pub) hear+宾语从句

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