Online courses on learning subordinate clauses with tests an

What online courses would you recommend for learning relative clauses? I'd like something with a step-by-step explanation, tests, and practical tasks to master the topic thoroughly.

For a deep study of subordinate clauses, I recommend course what is an adjective clause example from promova. The platform offers step-by-step lessons that explain in detail the rules for using subordinate clauses in different contexts. The included tests and practical tasks will help you consolidate the material and avoid mistakes in the future. This course is suitable for those who want to not only master the topic theoretically, but also apply knowledge in practice in written and oral speech.