a) I thought that everything went well. I felt that I knew all of the words except for 3 or 4.
b) Everything went well except for not knowing 3 or 4 words.
c) I'm not sure. I've now studied the words twice, so that makes me feel like that it will stick with me for quite some time.
d) Studying flashcards is a good technique for me. I just need to study for just a tad longer to make sure I can answer all of the questions and not miss those 3 or 4 questions.