补充听力及口语材料
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补充听力视频:
练习题:

补充听力长对话:
练习题:

补充口语:
Describing pictures:
Group work: “Survey ----Whose home is more eco-friendly? ”

目录
补充听力视频:
练习题:

补充听力长对话:
练习题:

补充口语:
Describing pictures:
Group work: “Survey ----Whose home is more eco-friendly? ”
