6, 8, and 9 are all dependent clauses because you would not be able to say them on their own and make sense. They begin with words that make the listener expect more information in that sentence. For example if I just said "If I was taller" and said nothing else, the sentence wouldn't make much sense, so that makes it dependent.
7 and 10 are independent because you can say them on their own and it would make sense. I could say "I am taller" or "I wish I were taller', and the sentence would be complete
