Answer:
1. Los sobrinos tienen que estudiar mucho.
2. Ustedes vienen de México, ¿verdad?
3. Yo creo que tu no tienes razón.
4. El señor Alejo tiene noventa años.
5. Tu vienes al laboratorio los viernes.
6. Tamara y Yo tenemos hambre y sed.
Explanation:
<em>1.The nephews have to study a lot.</em>
<em>1.The nephews have to study a lot.2. You come from México, right?</em>
<em>1.The nephews have to study a lot.2. You come from México, right?3. I belive you are not right.</em>
<em>1.The nephews have to study a lot.2. You come from México, right?3. I belive you are not right.4. Mr. Alejo is 90 years old.</em>
<em>1.The nephews have to study a lot.2. You come from México, right?3. I belive you are not right.4. Mr. Alejo is 90 years old.5. You come to the lab on fridays.</em>
<em>1.The nephews have to study a lot.2. You come from México, right?3. I belive you are not right.4. Mr. Alejo is 90 years old.5. You come to the lab on fridays.6. Tamara and I are hungry and thirsty </em>