单项选择题

The President of Harvard pioneered the elective system by（）students were able to choose their own courses of study.

A. what
B. whom
C. that
D. which

<上一题 目录 下一题>
热门 试题

单项选择题
When can you read Jones’ new book in the library（）

A. In May.  
B. In March.   
C. In August.
D. In June.
单项选择题
Though eight years have passed, I still remember（）to Mr. Ma during my visit there.

A. introducing
B. being introduced
C. to be introduced
D. introduced
相关试题