Составить специальные вопросы к предложению(общий, альтернативный, разделительный, специальный , вопрос к подлежащиму) вот предложение: the aim of the students expedition was to explore the flora and fauna of their native land and learn more about practical ecology. заранее : 3

The aim of the students expedition was to explore the flora and fauna of their native land and learn more about practical ecology.
1) Was the aim of the students expedition to explore the flora and fauna of their native land and learn more about practical ecology?
2) Was the aim of the students expedition to explore the flora and fauna of their native land and learn more about practical or theoretical ecology?
3) The aim of the students expedition was to explore the flora and fauna of their native land and learn more about practical ecology,wasn't it?
4) What was the aim of the students expedition?
5) к подлежащему не получается:

1. Our body parts are important for doing something, let's take an example from our hands, our hands can be helpful to us to do something, to build, to cook,

for writing, Painting and a lot

2. For me.. I think that our ears, and our eyes. Thats really helpful, because of our eyes we can see the beauty of the world, and because of our ears we can hear the beautiful voices

3. Of course heart. That's extremely important for our living. Because of heart we are living, and seeing the all beauty of nature, smell the delicious meal, and hear the most beautiful sounds of seasons

1. I turned on the TV to watch the cartoon.
2. She visits her grandmother twice a week.
3. I can go for a walk outside. I already did my homework.
4. When I was five, I couldn't read. 
5. You don't have to go to school when you're sick. 
6. Pink beautiful dress of red, but white is the most beautiful.
7. I will study German language in fifth grade.
8. When you saw him? 
9. He went to the movies yesterday.
10. It is the teacher who teaches me in school.
11. If you don't get up now you'll be late to school. 
12. He's going to go to the supermarket to buy milk
13. She painted the room until five o'clock.
14. We were tired, because I cleaned the house all day.
15. I hope to play tennis later.
16. It's hot, I open the window.
17. I'll go to the theatre on Saturday.
18. He visited three museums this week.
19. I did my homework with a nine to twelve hours.
20. What were you doing when I phoned you?
21. Mike never forgets to feed his dog.
22. As David often visited the library?
23. She watched the video after you have done your homework.
24. Peter is still looking for a new job.
25. Do you want some juice? - No, I need water.