Choose the correct sentences

Choose the correct sentences.
1.  ab
a. He will probably misunderstand the instructions.
b. He probably will misunderstand the instructions.
2.  ab
a. If you don’t speak very slowly, they definitely won’t understand you.
b. If you don’t speak very slowly, they won’t definitely understand you.
3.  ab
a.  In this difficult economy, we will probably be able to find a buyer for the house.
b. In this difficult economy, we probably won’t be able to find a buyer for the house.
4.  ab
a. They are the best team ever, so I think they will definitely win the final.
b. They are the best team ever, so I think they definitely won’t win the final.
5.  ab
a. He’s busy tomorrow, so he possibly won’t come to your birthday party.
b. He’s busy tomorrow, so he possibly not come to your birthday party.
6.  ab
a. The message will definitely arrives late.
 
b. The message will probably arrive late.