Do/Does

1- ____ you watch TV every day?
2- ____ she read books?
3- ____ this child often cry?
4- ____ Mary teach small children?
5- ____ your friends buy sweets?
6- ____ Bob play football?
7- ____ they go to the gym?
8- ____ your mom run in the park?
9- ____ cats like milk?
10- ____ Tim and Ann do homework?


Coloquem explicação por favor!