51 Section Iv, Unit 1, In-Class Listening 2
50 SECTION IV,_Unit 1, In-Class Listening 1 — Buying Foodstuf 02:55
51 Section IV, Unit 1, In-Class Listening 2 — How Do you Do t 02:15
52 Section IV, Unit 1, Out-of-Class Listening 1 — In a Shop 01:56
53 Section IV, Unit 1, Out-of-Class Listening 2 — A Shopassis 04:14