I have a Spanish project. I need a sentence, that is not a question. It has to have usted with a verb. so (you formal) then (doing something)

Which ion was formed by providing the second onization energy to remove an electron?

Las calles estén sucias. a. es recomendable que b. es una vergüenza que c. es preferible que d. es preciso que

Your friend miguel calls his mother from your house to give her an update on his plans for the day. just from listening to his side of the conversation, you realize that his mother has lots of questions. what does she ask him, based on miguel's answers? choose the correct question in the list for each item. you will hear each set of statements twice.