A. sacamos
Lots of times, for we (nosotros) the verb ends in -mos.
this is not even spanish xd
Looks correct to me love :)
4th one. Carmen caminaba a la playa.
The first one is using the nosotros form. The second one is using preterite but using the yo form. The third is using the you form.
The 4th one is saying it was a continuos activity and it was talking about a specific person.