比较级 用法
问题描述：
比较级 用法
poor countries can provide effective competition with imports of cheap goods,because wages are so much lower than( )in america.
请问这句话的括号里加these,或什么也不加,哪个正确?
答
加those,原句because wages are so much lower than wages in america
为避免重复,加上wages是复数,用those