Combine the following sentences using relative pronouns: Neil Armstrong was a well-known person. He first walked on the moon

Combine the following sentences using relative pronouns.
1. Neil Armstrong was a well-known person. He first walked on the moon.
..........
2. Shakespeare was born in 1564 and died in 1616. He wrote "Romeo and Juliet".
........
3. His house doesn't have electricity. It is in the forest.
.....
4. Mars is the planet. It is close to the earth.
....
5. James Watt was a great scientist. He invented the steam engine.
.....
6. We have visited Singapore twice. Singapore won the 1998 Tiger Cup.
....