It sounds like you're looking for answers for your from the textbook by Lvov and Lvova . Using "GDZ" (готовые домашние задания) can be a helpful way to check your work, but it's always best to try the exercises yourself first so you actually learn the grammar!
Look at the explanations provided in the GDZ. Many sites explain the "why" behind the rule. The Verdict spisat s gdz russkii.lvov lvova dlia 6 klassa
I can explain the grammar so you can finish the work yourself! It sounds like you're looking for answers for
Since you also asked for a , I’ve written one that explores the "GDZ culture"—the pros and cons of using answer keys. The Homework Dilemma: Is Using GDZ "Cheating" or Learning? Many sites explain the "why" behind the rule
Try to solve the exercise on your own using your textbook notes.
Surprisingly, GDZ can actually be a great tutor if you use it the right way. Instead of starting with the answers, try this: