答案及解析：[多选题]Given the different background knowledge between the target-language and students’ native tongue, in - 教育教学网课答案- 答案窝(daanwo.com)-大学生作业答案及考资分享平台

问题：

[多选题]Given the different background knowledge between the target-language and students’ native tongue, in listening teaching, the teacher can start by researching students' ( ), ( ), and ( ).
Anative countries
Bcultures
Ceducational systems
Dpsychological behaviors