问题
_________ last as his coach suggested, he wouldn’t have narrowly escaped being killed.
A:Hadn’t the skydiver exited
B:If the skydiver hadn’t exited
C:Should the skydiver not exit
D:If the skydiver wouldn’t exit
B:If the skydiver hadn’t exited
C:Should the skydiver not exit
D:If the skydiver wouldn’t exit
正确答案是：
