问题
选择题
---He was nearly drowned in a pool.
---Oh, when was ___ exactly?
--- It was in 1983 ____ he was swimming with his friends.
A．this; that
B．that; when
C．that; that
D．what; when
答案
答案：C
That，it都指那件事第二句补充完整为 He was nearly drowned in 1983 when he was swimming with his friends.