找出下面句子中的错误并改正。

( ) 1. He want to see him very much.                                                          

                   A       B     C

( ) 2. Jenny watched Danny to play ping-pong last Sunday.                           

                         A                    B                              C    

( ) 3. Good food is good at your body.                                                         

                            A          B   C

( ) 4. Here are some water.                                                                        

              A     B             C  

( ) 5. He brushes his tooths every night.                                                      

                     A              B                C

从阻燃处理的工艺上分，阻燃剂有（）和（）两大类。