week 1,Interchange Fourth Edition,Level 3,Listen&Practice

week 1,Interchange Fourth Edition,Level l 

Improve your Listening&Speaking

Listen&Practice:

• audio 4-1
• audio 4-2
• audio 4-3
• audio 4-4
• audio 4-5
• audio 4-6
• audio 4-7
• audio 4-8
• audio 4-9
• audio 4-10