个路英语高手麻烦您了

个路高手，麻烦您了 To practise English conversation,the teacher had the students sit ____
A in two and three B in twos and threes C in two or three D in twos or threes   

参考案 in twos and threes＝in groups of two or three 三三两两
固定表达 没有道理可讲。
为了练习会话，老师让学生三三两两坐在一起。

其他回   To practise English conversation,the teacher had the students sit ____
A in two and three B in twos and threes C in two or three D in twos or threes
选D