Fill in: iconic, distinctive, flexible, portable, one-of-a kind, innovative. 1 Using building materials helps to prevent a structure from cracking. 2 Arabian architecture has a very look; it's very easy to recognise.
3 The most architects tend to think outside the box.
4 Dubai is a truly place; there's simply nowhere like it.
5 The Eiffel Tower is undoubtedly the most landmark of France.
6 Nomadic people need homes because of their constant movement.​

Dear Ben! I was very pleased to get a new letter from you. Thanks for sharing your news, I am so sorry you should leave your friends. I trust you will make a lot of new friends there. In your message you asked me some questions, I will try to answer them.
You wanted to know, what do I like most about my school. I think it's my fair and gracious teachers and my best friend(s). I (don't) have a lot of friends. We usualy go to the cinema and videogames together. 
What did you do with your mates? How do you think they feel about your leaving? What do you expect from new school?
I'm sorry, I've too many things to do.
Best wishes, (имя)

1. ing-form, отглагольное сущ "использование (using)"
2. ing-form, отглагольное сущ "имение (having)" (по-русски - наличие)
3. ing-form, после предлогов (здесь: of) ставим ing-form
4. ing-form, после предлогов (здесь: on) ставим ing-form
5. ing-form, после предлогов (здесь: upon) ставим ing-form
6. ing-form, после предлогов (здесь: of) ставим ing-form
7. ing-form, после предлогов (здесь: on) ставим ing-form
8. ing-form, отглагольное сущ "определение (detecting)"
9. ing-form, отглагольные сущ "контроль и регулирование (Monitoring and adjusting)"
10. ing-form, после предлогов (здесь: without), ставим ing-form
Если что, то функции в том, что по-русски это всё-существительные. (ing-form)