(A) fulminate (v)嚴厲批評、譴責
(B) fumigate (v)煙燻
(C) flounder (v)困難重重
(D) fledge (v)長出羽翼
from Cambridge Dictionary
fulminate
fulmi(frame) +nate ---->強烈批評(火冒三丈)
20. Crowds of citizens protest and _____..-阿摩線上測驗