题目内容
直到这次期中考试后他才意识到英语非常值得学。（It, worth）
It was not until after the mid-term examination that he realized that English was/is worth learning.
练习册系列答案
相关题目
题目内容
直到这次期中考试后他才意识到英语非常值得学。（It, worth）
It was not until after the mid-term examination that he realized that English was/is worth learning.