You should only address others with “tu” when they are your age or younger. You use usted with people older than you like a grandparent or some random older person on the street you might run into.
That means "My cell phone does not recognize the USB cable only charge".
Yo (hice)la maleta en casa antes de salir
23.Los verbos que cambian el tallo tienen cambios ortográficos en todas las formas de tiempo presente, EXCEPTO nosotros (as) y vosotros (as). La raíz de los verbos es la parte del infinitivo que queda después de dejar caer terminaciones como -ar, -er o -ir. Pedir traducir es "pedir u ordenar". La forma en que lo pondrías en presente es Yo - Pido. Tu - Pides. El, Ella, Ust. - Pide. Nosotros - Pedimos. Vosotros - Pedis. Ellos, Ellas, Uds. - Piden. Servir es de la misma manera simplemente reemplaza el -ir con el cambio correcto
24. Houston:Mission control is also located in Houston. This is the place that handled all U.S. space flights after the spacecraft had been launched from Cape Canaveral,
Cape Canaveral:Cape Canaveral, or the Space Coast, is on the eastern coast of Florida at the John F. Kennedy Space Center, which has been the launch site for every American spacecraft since 1968.
