on what condition will they do it?

1)Sandy will go boating if the weather is nice 2)Sandy will go to the Lake District if it (даже по-русски не могу сообразить. Сэнди поедет в озерный край, если оно..) 3)David will make a snowman ifit snows 4)Mary will chat online with Peter if her parents allow her 5)Boris will ski downhill if it is slippery 6)The weather will be warm if the sun is bright 7)Polly will spend a lot of time outdoors if the weather is good