5. Los estudiantes han asistido a tres conferencias de ese escritor.
Explanation:
In the firt sentence when you use "Tú" (You) you have to use "Has conocido". In the second one you can either use or no the "Yo" (I) and the correct conjugation is "he disfrutado" and then "mis" which would mean my holidays. The third one is plural, that's why the "Han ido". Number 4 is Virginia who es "Ella" (she) so you have to write "Ha comenzado". In the last one is plural so you have to say that (the studients) "Los estudiantes han asistido".
Answer: Odd Numbers List. There are 25 odd numbers from 1 to 50 while there are 50 in between 1 and 100. In case of numbers from 1 to 1000, there are 500 odd numbers and 500 even numbers.
