they are talking about a math problem中about是什么成分

they are talking about a math problem中about之后的是什么成分 they are talking about a math problem中about是什么成分 they are () the problem talking over talking about talking w They are taking about the math problem together.同义句 What are they ( ) A talking B talking about C looking What are they talking about? What are they talking about?() think about math problem 【 】are they【 】about?they are talking about Lucy birthday par They are talking about (design)a new br they are talking about the learning c____________ They are talking about their group p_____.