1:
A: How far is it from your village to the town?
B: It is about 10 kilometres
A: How do you travel to the town?
B: I travel to the town by motorbike
2:
A: How far is it from Nga's house to her grandparents' house?
B: It is about 700 metres
A: How does she go to her grandparents' house?
B: She goes to her grandparents' house on foot

3.

A: How far is it from your hometown to Ho Chi Minh City?

 B: It's about 900 kilometres.

 A: How do you travel to Ho Chi Minh City?

B: I go to Ho Chi Minh City by train.
4. 

A: How far is it from Jim's office to the restaurant?
B: It's not very far

A: How do you go to the restaurant?
B: I go to the restaurant by walk.