12. All these frameworks _________ constantly __________________ (to be optimized)

6. React ____________________ (create) by Facebook and ____________________ (use) by them and by Instagram.

9. Ruby on Rails framework (RoR), ____________________ (write) in the Ruby language, ____________________ (use) today by more than 826,000 live websites.

4. Games and other apps ____________________ (write) on Flutter ____________________ (achieve) great speed.

2. Ember ____________________ (release) in 2011. Since then, it ____________________ (grow) and ____________________ (gain) more and more influence in the world.

11. Symfony framework ____________________ (appreciate) for its stability, high speed, flexibility, and a possibility for code reuse.

5. React ____________________ (gain) its fame due to the revolutionary component-based architecture. Other frameworks ____________________ (begin) to use this architecture much later.

10. Practically, any professional ____________________ (work) with Java ____________________ (use) Spring sooner or later.

8. Django is popular for ____________________ (create) MVPs for startups.

7. Vue.js is one of the newer frameworks for web development which ____________________ (grow) in popularity very quickly.

1. Angular can ____________________ (consider) the best framework for web applications.

3. This web application development framework is great for ____________________ (create) complicated web apps.