Silent consonant vs sounded consonant

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GYCQBMURCA DNRNNNCTEF RGUMEEOQAM AIMUTTWSTO BSBLSSTFFI MELOIANQOS ORECOHTGST BCTGMAOZIY XERUTANGIS GTRNGISEDQ
1.
crumb
2.
sign
3.
fast
4.
crumble
5.
signature
6.
moisten
7.
hasten
8.
bombard
9.
resign
10.
column
11.
moist
12.
design
13.
soft