来自黄边的问题
【这句话应该是therehas还是have?怎么判断Therehavebeenrevolutionarychangesinthesupermarketindustryinrecentyears.还是therehasbeen?怎么判断】
这句话应该是therehas还是have?怎么判断
Therehavebeenrevolutionarychangesinthesupermarketindustryinrecentyears.还是therehasbeen?怎么判断

