Question

My birthday is ____ March 21st. My mother's birthday is _______ September. *

1-in - on
2-at - in
3-on - in

Answer 1

Resposta:

On/In

Explicação:

Procura "ON IN AT" no google, que vai aparecer um triangulo especificando quando utilizar cada um.

Answer 2

Resposta:

2- at - in

Explicação:

My birthday is at March 21st. My mother's birthday is in September