Section B 第 4 课时（2a~2c）类别学习重点重点单词Mr. , clothes, store, buy, sale, sell, all, very, price, boy重点短语a pair of, come and buy, at our great sale重点句式1. Come and buy your clothes at our great sale!2. We sell all our clothes at very good prices. 3. We have green sweate...
