Viết lại câu sao cho nghĩa không đổi: We regret to inform you that your application has not been successful -> Much to

We regret to inform you that your application has not been successful
  Much to...............
If we can solve the proplem soon,it will be better for all concerned
   The sooner.............
I'm absolutely sure that they weren't playing in this waether
   They can't possibly...........