Thanks for this Bryn.
Can you just confirm the text of the question so that I'm sure to be checking out the correct questions. For example, Developing a Melody #9 is a fill in the blank question.
For Using a Home Note #7 I made some edits that should help.
For Developing a Melody #6 I just tested it and it worked ok. Sometimes the confusing part is that if a student enters the wrong answers it colors all answer RED for being incorrect but it lists the correct answers so the student can see how it should of been. For example in this pic: