Нужно переделать простые предложения в: положительн.,отрицательн.,вопрсительн., и с who. 1.kate will travel to russia. 2.we will buy a present for our mother. 3.mum will make a nice cake. 4.we will have lunch together.

Они уже в положительной форме - сделаю только отриц., вопросительную и с Who: 
Отрицательная:
1. Kate won't travel to Russia.
2. We won't buy a present for our mother.
3. Mum won't make a nice cake.
4. We won't have lunch together.

Вопросительная:
1. Will kate travel to Russia?
2. Will we buy a present for our mother?
3. Will Mum make a nice cake?
4. Will we have a lunch together?

Who:
1. Who will travel to Russia?
2. Who will buy a present for our mother?
3. Who will make a nice cake?
4. Who will have a lunch together?