The second front was important because

The contribution of Soviet soldiers and officers cannot be overestimated. The victory was achieved at the cost of millions of their lives. But the second front helped to speed up the victory over Germany, which in turn helped save the lives of many Soviet soldiers.

the answers are 1 and 4

there are many ways of getting involved on your local party. attached you will find the brochure that describes some ideas: go ahead and visit your local hq, become a volunteer on your comnunity or struggle up for your own ideas so you can make them real.