根据句子意思，用括号中所给词的适当形式填空。
1. Lucy wants ＿＿(be) a singer.
2.He
is the ＿＿ (tall) boy in his class.
3.Who’s ＿＿ (slim),Lucy or Lily?
4.Tom is good at____(sing).
5.Don’t go out.It’s raining____(heavy).
6.We can’t hear you.You have to speak____(loud).
7.Look!The two men are____(chat)under that tree.
8.I am very____(interesting)in this book.