ВЫБЕРЕТЕ ОДНО ИЗ 2-ух (А ГДЕ МОЖЕТ ПОДХОДИТЬ И ТОТ И

ВЫБЕРЕТЕ ОДНО ИЗ 2-ух (А ГДЕ МОЖЕТ ПОДХОДИТЬ И ТОТ И Иной ВАРИАНТ?)
1 I can't get the computer to work. Which/What have you done to it?
2 When we get to the next junction, which/what way shall we go?
3 Which/What countries in Europe have you been to?
4 Which/What are you worried about?
5 Which/What kind of work do you do?
6 Which/What do you think I should wear - my blue or my red tie?
7 I still have to type these letters and photocopy your papers. Which/What do you want me to
do next?
8 Which/What is the best way to get to Sutton from here?