AYUDA?

AYUDA! Ocupo que me ayuden a corregir esto y marquen los errores, pero por fa haganlo completo I. INSTRUCTIONS : Read the sentences of the following paragraph. Choose the underlined words or groups of words that contain a grammar mistake. Then write the correct form above each mistake. Yesterday, my teacher 1. (were asking) us to do a homework about the different human attempts to conquer the moon. I 2. ( looked up) on internet the different missions as I 3. (were watching) a documentary at History Channel. The information on the web 4. (were) so technical that I 5(. Was consulting )a dictionary at the same time I 6. (was watched) the TV. The TV host 7. (talked) about various Apollo missions. Suddenly, another voice 8. (changing) the tone, saying : “Houston 9. (we have) a problem”. That voice (10. Were) Jack Swigert’s voice. He 11. (was) the astronaut and pilot of the spacecraft 12. ( launching) for Apollo 13 mission in 1970. Swigert 13. (was) not supposed to be on the mission. He 14(. Substituted) Ken Mattignly, the original pilot. Mattignly 15. (prepared) to go out of space when doctors 16. (discovered) he had been exposed to measles. On the second day of the mission, an oxygen tank 17. (was exploding), disabling part of the spaceship. In spite of all these outcomes, the crew 18. (was coming) back safe and sound on April 17, 1970. I 19. (watched the documentary while I 20. (was doing) my homework, so it didn’t take long to finish it. I think it is a good assignment and my teacher will be pleased with it.