问题
Jack, your father has gone out without this umbrella!—Well, take it easy. _________ he comes back for it.
A:It is long before that
B:It won’t be long since
C:It will be long before
D:It won’t be long before
B:It won’t be long since
C:It will be long before
D:It won’t be long before
正确答案是：
