Completa el siguiente párrafo con las formas adecuadas del pretérito de los verbos ser o ir.

entre los 15 y los 25 años, yo (1) músico en una orquesta (musician in an orchestra). mis compañeros y yo (2) a tocar (to play) a varios países. el público siempre (3) muy amable con nosotros. (4) una experiencia inolvidable (unforgettable experience) para mí. esos (5) los mejores años de mi vida.

47. a student is frightened by a loud noise, which results in a hormone being released into the blood. the hormone causes the student's heart to beat rapidly. the two systems that work together to cause this reaction are the endo- crine system that secretes the hormone and the (1) nervous system (3) excretory system (2) reproductive system (4) digestive system

Which factors threaten the forests of north america?

There is nothing in the world which travels faster than these persian couriers . . it is said that men and horses are stationed along the road, equal in number to the number of days the journey takes - a man and a horse for each day. . neither snow nor rain nor heat nor gloom of night stays these couriers from the swift completion of their appointed rounds. read this passage and highlight text that gives evidence as to why persian couriers are able to complete their jobs so quickly. according to evidence in the passage, why are persian couriers able to travel so quickly? check all that apply. men and horses are stationed along the road. they rest every night so they can go at top speed the following day. couriers do not allow bad weather to slow them down. they receive a reward upon the completion of their journey.