Find ONE mistake in each of the following sentences and correct it

Ex4: Find ONE mistake in each ò the following sentences and correct it:
1. Unless there had been a heavy storm, the climber will not have died.
         A                     B             C                                   D
2. He spends money careless as if he was a millionaire.
              A                        B        C          D
3. They spent money as if they were very rich.
      A                             B    C       D
4. What would you have do if you were in my position?
        A                      B         C          D
5. If I had knew the time when the match started, I would have told you.
    A          B                        C                                                D
6. If had I known you were in financial difficulty, I would have helped you.
               A                     B   C                                               D