Question

—Jack, your father has gone out without this umbrella!

—Well, take it easy. ________ he comes back for it.

1. A.
   It is long before that
2. B.
   It won’t be long since
3. C.
   It will be long before
4. D.
   It won’t be long before

Answer 1

D
本题考查固定句式。It won’t be long before...意思是“用不了多久就会……”，符合句意。