Buna ziua. Care este diferenta dintre verb la Indicativ, perfect compus si verb la Participiu ? Cu exemple in propozitii daca s-ar putea. Multumesc!

Which of the following has a positve charge? a) protons b) neutrons c) particles

Which item is an example of a primary source

Ireally, really need with this asap. i don't understand spanish prepositions and when they should be used. the questions are:fiesta con juan el fin de semana pasado. el parque está casa. es una lástima que haya tantos lago. el jefe quiere inmediatamente. the answers can be one of the following: en, con, de, a i will award !