As Denis said, this was very difficult without the audio. I have done similar exercises before but...well, lets just say that I am not sure how many of my answers are correct and how many are not...
However, here is my answers:
1A
2B - if it was a question it should have a rising intonation -
3A
4B - if it was a question it should have a rising intonation; now it is more like "I heard you, now tell me more about it" -
5B - in a closed list, the last item should have a falling intonation -
6A
7A
8A
9A
10A - it is a question because it has a rising intonation; "I didn't quite hear you, so could you repeate that"