单项选择题

The chirmn’s speech ______ the rdio when I turned it on.ws brodcst onB.ws being brodcst oT

he chirmn’s speech ______ the rdio when I turned it on.ws brodcst on B.ws being brodcst on C.ws brodcsting in D.brodcst overA.was broadcast onB.was being broadcast onC.was broadcasting inD.broadcast over
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