Question

Write for or since in the following sentences:
1. Sam hasn’t been here for a month.
2. Kate has lived there since 2005.
3. I have come to you for three weeks.
4. Bob has been in Washington since Monday.
5. I haven’t seen her for ages.
6. Sally has been in hospital since April.
7. They have known Kate for 2 years.
8. We have planned to stay there for 2 days.
9. They have been friends for their childhood.
10. Tom has been in the office since 6 o’clock.

¿me dicen si está bien?

Answer 1

Respuesta:

¡Está genial! La única que deberías cambiar es la número 9: They have been friends SINCE their childhood.

Explicación:

Debes usar SINCE cuando quieras decir "desde". Por ejemplo: No he visto a Miguel desde el año pasado. → I haven't seen Miguel SINCE last year.

Debes usar FOR cuando quieras decir "durante". Por ejemplo: He estado en casa durante dos horas. → I have been home FOR two hours.