题干
—When were you born?
—I was born ________ April 23, 1979.
A：on
B：in
C：at
D：to
答案(点此获取答案解析）
A
—When were you born?
—I was born ________ April 23, 1979.
A：on
B：in
C：at
D：to
，且 
．