Pair 1: It’s the best car./It’s the best cow.

Pair 2: It was a long bar./It was a long bow.

Pair 3: Her bra was wrinkled./Her brow was wrinkled.

Pair 4: There’s beautiful grass here./There’s beautiful grouse here.

Pair 5: ‘Arch!’ he said loudly./‘Ouch!’ he said loudly.