1 lone pairs, 2 lone pairs, 0 lone pair.
Work Step by Step
Br has 7 valence electrons, and when one of its electrons is bonded, it has 3 lone pairs. H2S has 2 lone pairs because sulfur has 6 electrons, and when 2 of it is bonded, it has a remaining of 2 electron pairs. CH4 has no lone pairs because all the electors on carbon is bonded to the 4 hydrogens.