Здравствуйте! Мне нужна помощь по английскому языку.

1.Общий к № 1
Can we use далее переписываешь остаток предложения, только can use уже не надо и ставишь ?
Общий к № 2
1. Do you need an average wind speed of around 25 km h, to be worthwile?
2. Альтернативный к № 1
Can we use the energy in the wind by building a tall or a sort tower, with large propeller on it?
2. Альтернативный к № 2
Do you need an average wind speed of around 25 or 30 km h, to be worhtwile?

3. Специальный к № 2
. In what way can we use the energy in the wind?
3. Специальный к № 1
What an average wind speed do yo need to be worthwile?

Не будем мелочиться: -)
Итак, по порядку, вами указанном.. .
2. To be worthwhile, you need an average wind speed of around 25 km/h.
- Do you need an averae wind speed of around 25 km/h, to be worthwhile?
- To be worthwhile, do you need an average wind speed of around 25 km/h or 30 km/h?
- What wind speed do you need?
- You need an average wind speed of around 25 km/h, don't you?

1. We can use the energy in the wind by building a tall tower, with a large propeller on the top.
- Can we use the energy in wind by building a tall tower, with a large propeller on the top?
- Can we use the energy in the wind by building a tall tower, with a large or small propeller on the top?
- What can we use by building a tall tower?
- We can use the energy in the wind by building a tall tower, with a large propeller on the top, can't we?

Олли, Вы хоть бы с Николая шоколадку стрельнули за сделанное за него домашнее задание.