用括号中所给单词的适当形式填空，每空格限填一词。

1．Mr Green got her daughter a computer for her ____________ （twelve） birthday．

2．I need to wear glasses because I can’t see the words on the blackboard ___________ （clear）．

3．－How’s the weather today?

－It’s ______________ （cloud）．

4．My brother Barry is the ____________ （funny） person that I know． He often makes us laugh．

5．His ____________ （ill） is even worse than I thought it would be．