Unit 27-Sales and costs 销售额与成本
Unit 28 Profitability and unprofitability 盈利与非盈利
Unit 29 Getting paid 得到报酬
Unit 30 Assets, liabilities and the balance sheet 资产,债务与资产负债表
Unit 31 The bottom line 最终盈亏
Unit 32 Share capital and debt 股本与债务
Unit 33 Success and failure 成功与失败
Unit 34 Mergers, takeovers and sell-offs 合并,收购与抛售