Adjective clauses with object pronouns

I love mountain biking. My sister thinks it is too dangerous.

• I love that my sister thinks mountain biking is too dangerous.

• My sister thinks mountain biking is too dangerous.

• I love mountain biking my sister thinks that is too dangerous.

• I love mountain biking that my sister thinks is too dangerous.

Whitewater rafting is an exteme sport. I have done whitewater rafting in Turkey.

• Whitewater rafting is an extreme sport which I have done it in Turkey.

• Whitewater rafting is an extreme sport that I have done in Turkey.

• Whitewater rafting is an extreme sport done by me.

• Whitewaterrafting which I have done it in Turkey is an extreme sport.

One of the most expensive winter activities is heliskiing. Only people with money can afford it.

• Only people with money can afford it heliskiing.

• One of the most expensive winter activities is heliskiing that only people with money can afford it.

• One of the most expensive winter activities is heliskiing people can afford it.

• One of the most expensive winter activities is heliskiing which only people with money can afford.

My friend loves swimming. I saw her in the pool this morning.

• My friend I saw her in the pool this morning loves swimming,

• My friend loves swimming who I saw her in the pool this morning.

• My friend, whom I saw in the pool this morning, loves swimming.

• My friend I saw in the pool this morning loves swimming.

Martial arts is an individual sport. We practice it to learn self-defense.

• Martial arts which is an individual sport we practice to learn self-defense.

• We practice martial arts to learn self-defense that is an individual sport.

• Martial arts is an individual sport we practice to learn self-defense.

• Martial arts is an individual sport we practice it to learn self-defense.

My neighbor is a risk-taker. I heard he did bungee jumping in South Africa.

• My neighbor is a risk-taker who he did bungee jumping in South Africa.

• My neighbor is a risk taker who I heard did bungee jumping in South Africa.

• My neighbor is a risk-taker who I heard he did bungee jumping in South Africa.

• My neighbor is a risk taker which I heard did bungee jumping in South Africa.

I saw an ultramarathon. The ultramarathon was exciting.

• I saw an ultramarathon that it was exciting.

• I saw an ultramarathon which it was exciting.

• The ultramarathon which I saw it was exciting.

• The ultramarathon which I saw was exciting.

Table tennis is a fast sport. My father used to practice it.

• My father used to parctice table tennis a fast sport.

• Table tennis is a fast sport who my father used to practice.

• Table tennis is a fast sport which my father used to practice it.

• Table tennis is a fast sport that my father used to practice.

The game was not easy. Peru won the game.

• The game that Peru won was not easy.

• The game whom Peru won was not easy.

• Peru won the game that it was not easy.

• Peru won the game was not easy.

Sofia Mulanovich has been one of the best surfers in Peru. My sister met her in Lima.

• Sofia Mulanovich has been one of the best surfers in Peru who my sister met in Lima.

• Sofia Mulanovich who has been one of the best surfers in Peru my sister met her in Lima.

• Sofia Mulanovich, whom my sister met in Lima, has been one of the best surfers in Peru.

• Sofia Mulanovich, my sister met her in Lima, has been one of the best surfers in Peru.