Question

_____the boys _____ at the gym when they were younger? Yes, they did. *

1)Did / use to train

2)Did / use to training

3)Do/ used to train

4)Do / use to trains

ocupo ayuda no entiendo cual es la res pesta ​

Answer 1

Respuesta:

Did the boys use to train at the gym when they were younger? Yes, they did.

Explicación:

Cuando se usa "did" el verbo siguiente no cambia. En este caso el verbo es el verbo modal "used to".