а) 1 slowly
2 suspiciously
3 awkwardly
4 desperately
5 gently
6 warmly
b)
1 To my frustration, I had completely forgotten where I was supposed to meet my friend!
2 Unfortunately, it rained heavily throughout our entire holiday.
3 He carefully drove through the snow and returned home safely.
4 She screamed loudly as she fell; I hoped that she would not be badly injured.