Which pair of species has the same shape?

$\mathrm{XeF}{}_2$ and $\mathrm{I}{}_3{}^{-}$ each have 2 bond pairs and 3 lone pairs on the central atom, so both are linear. $\mathrm{SF}{}_4$ is see-saw while $\mathrm{XeF}{}_4$ is square planar; $\mathrm{NH}{}_3$ is pyramidal while $\mathrm{BF}{}_3$ is planar; $\mathrm{ClF}{}_3$ is T-shaped while $\mathrm{BF}{}_3$ is trigonal planar.