Нужно вставить одно из ! 11 класс

For me, the ideal school is, first of all, a well-equipped building that is not in an emergency condition, so that this school has good equipment and can be properly engaged. Secondly, these are young promising teachers who understand their task and teach children, do not yell at them and do not run to the head each time to tell what kind of children are bad. It will be possible to attend this school exactly when you want, that is today for example, you want to go to school at 11 o'clock in the morning and you go, tomorrow you can go at 12 o'clock, and after tomorrow at all somewhere at 6. o'clock you go to this school according to your schedule, not the official one. It would be nice if you don't want to go to classes that you just want to go to, and give twice as much time to classes that you really need, and which you want to attend.

1) in the 15th century, leonardo dicaprio wanted to build a helicopter but he couldn't seriously consider doing so because the technology didn't exist (build ,do)
2. Although H.G. Wells could imagine travelling to the moon, he failed to understand how it could be done. For example, he seemed unthinkable it would be possible without special breathing systems (travel,understand,think)
3. Arthur Clarke enjoys thinking about space adventures but he avoids writing about things without explaining how they might be possible one day (think, write,explain)
4. Would you agree to postpone going back to school if you could travel to the moon (postpone, go)