While my parents were watching TV ,my sis

问题描述:

While my parents were watching TV ,my sis
While my parents were watching TV ,my sister( )(Shout)to me loudLy 括号里填那个,为什么,写理由 was Shouting shouted

was shouting.while在此句中引导的时间状语,表示两个句子的动作同时发生,而且这是对发生的动作的描述.所以用过去完成式was shouting.