—He got his first book published. It turned out to be a bestseller. —When was ? — was in 2

问题补充：

—He got his first book published. It turned out to be a bestseller.

—When was ?

— was in 2000 when he was still in college.

A. that; This

B. this; It

C. it; This

D. that; It

答案：

A. that; This

B. this; It

C. it; This

(答案→)D. that; It

解析：第一个空指代上文所提到的内容；第二个空是强调句型，只保留了前半部分It was in 2000 when he was still in college，而省略了that he got his first place.