`text{1.}` If It didn’t rain all day, Jim could join in the game.
= Unless it rained all day, Jim could join in the game.
`text{2.}` If you don’t leave me alone, she will stay at home.
= Unless you leave me alone, she will stay at home.
`text{3.}` If my mother hadn’t been so busy, she could have gone to the concert.
= Unless my mother had been so busy, she could have gone to the concert.
`text{4.}` If I had had enough money,I could buy this house.
= Unless I had enough money,I couldn't buy this house.
`text{5.}` If Ken hadn't eaten many ice creams,he wouldn't have felt sick.
= Unless Ken had eaten many ice creams,he wouldn't have felt sick.
`text{6.}` If it weren’t snowy, they could go to school.
= Unless it were snowy, they could go to school.
`text{7.}` If his sister spoke English, she would get the job.
= Unless his sister spoke English, she wouldn't get the job.