—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
网友回答
A. that; This
B. this; It
C. it; This
(答案→)D. that; It
解析：句意：他的第一本书出版了。结果非常畅销。那是什么时候的事？是2000年他还在上大学时。说的是过去的事，所以用that而不是this; was in 2000 when he was still in college.是强调句型，补充完整是 was in 2000 when he was still in college that he got his first book published.所以用it。选D。