Exploring Grammar

A:How many people are there in your family?
B:There are four.
A:Where do they live?
B:They live in Oaxtepec, Morelos
A:What does your father do?
B:He is a High School teacher.
A:When do you usually visit your family?
B:I usually visit them buring the weekend
A:How long does it take you to get to Oaxttepec?
B:Two hours