Tom __while he was playing basketballA hurt B was hurting C got hurt D had been hurt解释一下原因和不选别的的原因

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Tom __while he was playing basketball
A hurt B was hurting C got hurt D had been hurt
解释一下原因和不选别的的原因

c
后面是时间状语从句,从句中用的过去进行时,主句要用过去式