【题目】Anyone who has spent time with children the difference in the way the boys and girls similar situation.
aware of ; respond to
is aware of ; respond to
aware; responding
is aware of ; respond
在线课程【答案】B
【解析】由题干得知，who引导的是定语从句，主句中缺少谓语动词，所以第一空要有is，respond to意对…做出反应。