Ⅰ、1、outgoing
2、quietly
3、win
4、fantastic
5、competition
Ⅱ、1-5：D D B C C
Ⅲ、1、more loudly
2、thinner
3、fast
4、dance well
5、clearly
Ⅳ、1、as hard as
2、with shorter hair
3、singing competition
4、more outgoing
5、Both，and，to win