1
My brother likes climbing mountains, to play the guitar, and read poems.
My brother likes climbing mountains, playing the guitar, and reading poems.
（兄は山に登ったり、ギターを弾いたり、詩を読んだりするのが好きだ）
My brother likes climbing mountains, playing the guitar, and reading poems.
（兄は山に登ったり、ギターを弾いたり、詩を読んだりするのが好きだ）
2
Australia is large in area but has a small population.
Australia is large in area but small in population.
（オーストラリアは面積は大きいが、人口は少ない）
Australia is large in area but small in population.
（オーストラリアは面積は大きいが、人口は少ない）
3
Slavery seemed necessary in the South but it seemed that the North didn’t need it.
Slavery seemed necessary in the South but unnecessary in the North.
（奴隷制度は南部では必要だが、北部では不要だと思われた）
Slavery seemed necessary in the South but unnecessary in the North.
（奴隷制度は南部では必要だが、北部では不要だと思われた）