Resposta:

silent K (knife, knee, knot, know, knock, knight), silent B (lamb, thumb, numb, climb, plumber), silent N (damn, column, autumn), silent G (gnome, sign, resign, design), silent H (hour, honest), silent L (salmon, palm, calm, talk, walk, chalk, half, calf), silent T (listen, fasten, castle, often, soften), silent S (island, aisle), silent C (muscle).

Explicação:

Hope this helps

source: google