下面的感叹句由How还是What引导？
（1） fat he is!                          （2）  fast she runs!
（3） a lovely dog!                  （4）  an interesting film!
（5） nice the food is!              （6）  a good boy!
（7） kind his mother is!             （8）  a nice camera it is!
（9） clever students they are!        （10） slowly the rabbits run!