用所给词的适当形式填空。

1.  We need _____ (wear) warm clothes in winter.

2.  There_____ (be)a little water in the glass.

3.  Who is the _____ (good) in English in your class?

4.  Jim is now' much _____ (happy) than he was one year ago.

5.  The students are very_____ (busy) now. They_____ (have) an exam next week.