Manybusinesspeoplechooseairtransportationbecauseitisfast,offersconvenience,anditi...Manybusinesspeoplechooseairtransportationbecauseitisfast,offersconvenience,anditisnotveryexpensive.这句话是平行结构错误.为什

问题：Manybusinesspeoplechooseairtransportationbecauseitisfast,offersconvenience,anditi...Manybusinesspeoplechooseairtransportationbecauseitisfast,offersconvenience,anditisnotveryexpensive.这句话是平行结构错误.为什

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蒋国瑞的回答：

网友采纳　　Manybusinesspeoplechooseairtransportationbecauseitisfast,offersconvenience,anditisnotveryexpensive.　　itisfast,offersconvenience,anditisnotveryexpensive.这三个是平行的,但是第一个和第三个都是itis+adj.而offersconvenience是vi+n.这样就不平行了,可改为：　　Manybusinesspeoplechooseairtransportationbecauseitoffersusconvenience,anditisfastandnotveryexpensive.　　Thankyou~　　不懂还可以问.