What can you do apart from just doing the paper?
1. Search what you need (eg. “infinitives and gerunds”) here and play with flashcards and games: http://quizlet.com/
2. Read a short monolingual dictionary (I did it myself when I was 18)
or just browse
3. Read books and articles in English focusing NOT on new language but on EXPRESSIONS that you understand but you wouldn´t use yourself
4. Use the Cinderella vocab learning method or a voice recorder vocab learning method (see different post for the explanation):