The news ________ when we ________ TV．

A.was arriving; were watching

B.has arrived; watched

C.arrived; were watching

D.arrived; watched

答案及解析： C

解析：

消息“到达”是瞬间动作，“看电视”是持续性动作，瞬间动词不用进行时态，排除了A项。B项时态搭配不正确。根据语境可知，时间状语从句中表示正在进行的动作，故选C项。