Прошу ,помогите, очень  нужно)) 
заполните пробелы 
Put the verb into the correct form.
1.They would be offended if I    didn't  go   to their party. (not / go)
2.If you took more exercise, you     would feel    better. (feel)
3.If they offered me the job, I think I       it. (take)
4.A lot of people would be out of work if the car factory       .  (close down)
5.If I sold my car, I        much money for it. (not / get)
6.(in a lift) What would happen if somebody            that red button? (press)
7.I don't think there's any chance that Gary and Emma will get married. I'd be absolutely astonished if they         . (do)
8.Liz gave me this ring. She          very upset if I lost it. (be)
9.Dave and Kate are expecting us. They would be very disappointed if we          . (not / come)10.Would Steve mind if I            his bike without asking him? (borrow)
11.What would you do if somebody          in here with a gun? (walk)
12.I'm sure Sue             if you explained the situation to her. (understand)