2. I Hear Your Voice

4. Tempted

5. Falling Into Your Smile

This is a trope that I don't really pay attention to... 

7-twenty again

8-The beauty inside (this is in the plane I think she faints in his arms after some turbulances)

9-My secret romance

1. Kiss 

2. F4 Thailand

6.  Cunning Single Lady

As in never romantically involved, or just at the time of the scene?

7- mysterious romance 

8. Dare Yori mo Mama wo Aisu - if I remember right, nothing happend with them that night, but they did start dating later.