Wyrażenie I wish

Temat przeniesiony do archwium.
mógłby mi ktoś pomóc bo nie moge poradzić sobie z tym zadaniem.

1.You want to go swimming but it`s cold and windy.
-I wish it weren`t cold and windy.If it weren`t cold and windy.I could go swimming.

2.You don`t like getting up early,but you have to because you live far away from your office.

3.You missed the end of the film because you fell asleep.

4.You feel tired because you work long hours.

5.You missed your flight because you couldn`t find a taxi.
1.You want to go swimming but it's cold and windy.
I wish it weren't (so) cold and windy.
If it weren't (so) cold and windy, I could/would go swimming.

2.You don't like getting up early, but you have to because you live far away from your office.
I wish I didn't live (so) far away from my office.
If I didn't live (so) far away from my office, I wouldn't have to get up (so) early.

3.You missed the end of the film because you fell asleep.
I wish I hadn't fallen asleep during the film.
If I hadn't fallen asleep during the film, I wouldn't have missed the end of it.

4.You feel tired because you work long hours.
I wish I didn't work long hours.
If I didn't work long hours, I wouldn't feel (so) tired.

5.You missed your flight because you couldn't find a taxi.
I wish I hadn't missed my flight.
If I had been able to find a taxi, I wouldn't have missed my flight.
> I wish it weren't (so) cold and windy.
> If it weren't (so) cold and windy, I could/would go swimming.

Why "weren't"? Shouldn't it be "wasn't"? Or perhaps both forms are correct?