toefl 改错题

A liquid 这是主语
that might be a poor conductor定语从句修饰liquid
when it is pure省略了it is的状语从句
is often used to make谓语
solutions宾语
that readily transmits electricity.定语从句修饰solutions

因为solutions是复数的，所以transmits不对，应该是transmit

整句话的意思是：当一种液体处在纯净状态时会成为一种弱导体，经常被用来制作可以稳定导电的溶液。