(2013·扬州模拟)—Do you know　　　they got to know each other?
—It was last year　　　they both taught Chinese in Scotland．
(2013·扬州模拟)—Do you know　　　they got to know each other?
—It was last year　　　they both taught Chinese in Scotland.
A.when was it that; when
B.when it was that; that
C.when it was that; when
D.when was it that; that