Es que

Es que se usa para decir escusas o rechasos en español .

1. No tengo mi tarea. Es que el perro la comió. / I don't have my homework. It's because the dog ate it.
2. Yo estaba tarde. Es que no habían buses. / I was late. It's because there weren't any buses.
3. No fui a la fiesta. Es que estaba lloviendo. / I didn't go to the party. It's because it was raining.
4. No he comprado alimentos. Es que no tengo dinero. / I haven't bought the food. It's because I don't have money.