问题
Have you watched the popular TV play called Descendants of the Sun The main character Captain Yoo Si-jin in the play is so handsome.– Really When ______ it
A:opening; Of course
B:to open; OK
C:opening; Go ahead
D:to open; Certainly not;
B:to open; OK
C:opening; Go ahead
D:to open; Certainly not;
正确答案是：
