You can ask if you go somewhere a specific day for example voy allí el lunes which us do I go there Monday.
True.
Museo is masculine and you can't change it to female it is one of the few words you can't change.
1- hablar
2- quería
3- puse
4- era
5- una
6- entre
7- fuera
8- conocía
9- toda
10- la
11- decía
