Lena had a lot to do, didn't she? Yes, she did.
It was windy and cold outside, wasn't it? No, t wasn't.
Lena couldn't think about the party and the cake, could she? No, she couldn't.
Lena and her mother decided to have lemon tea and sandwishes for breakfest, didn*t they? Yes they did.
Lena was happy to stay in bed, wasn't she? Yes, she was.