注意：此页面搜索的是所有试题
题目内容
（东华大学大学英语4）
55. While I was in the university, I learned taking a photo, _____is now very useful for me. 我在大学的时候学习过摄影，这对我很有用。
A. it B. which C. that D. what
A. it B. which C. that D. what
参考答案
