1. is reading; 2. go; 3.Where are you going?’- I am going ...; 4. is; catches. 5. has. 6.”Why
are you laughing?” “Because you are talking nonsense.” 7. laughs, laughs; 8. speak; 9. is speaking, are smiling; 10. is splitting; 11. reacts; 12. forget; 13. are are having