Choose the answer which correctly completes the sentence

Choose the answer which correctly completes the sentence.

If they … the tourists about the new visa requirements before they left home, they all … stuck at the border arguing with the police now.

1. 
   Had been warned/wouldn`t be
   
2. 
   Warned/wouldn`t be
   
3. 
   Had warned/would have been
   
4. 
   Had warned/ wouldn`t be
   

22. 
    Choose the answer which correctly completes the sentence.
    

The chances for those still buried under the rubble … with every passing minute, and due to the inefficient equipment, the rescue operation … out very slowly.

1. 
   Had been diminished/ was carrying
   
2. 
   Are diminishing/is being carried
   
3. 
   Will have diminished/will carry
   
4. 
   Have diminished/ were being carried
   

23.