Answer:
the first one should be <em><u>esta </u></em>
second one should be <u><em>estamos </em></u>
the third should be <u><em>es</em></u>
and the last one should be <u><em>son</em></u>
Explanation:
1.Sr. Rodriguez tiene sesenta años. Sr Rodriguez is seventy years old
2.Ella es inteligente y bonita. She is smart and cute
3.Los estudiantes iran a la escuela. The students will go to the school
4.Yo tendre tres clases hoy. I will have three classes today.
5.Nosotros iremos a comer en el restaurante. we will go eat to the restaurant.