写出下列单词的相应形式。（每小题1分，共10分）
(1)sea/si:/(同音词)                       (2)too(同音词)           
(3)homework(复数)                         (4)teacher(复数)           
(5)one(序数词)                            (6)two(序数词)            
(7)is not(缩写形式)                       (8)cool(反义词)            
(9)hot(反义词)                           (10)any(同义词)