Pronounced differently
1: a) Nuclear b) pollute c) infrastructure d) reduce (gạch dưới chữ u)
2: a) persuade b) wrap c) deforestation d) label (gạch dưới chữ a)
3: a) flow b) household c) folk d) category (gạch dưới chữ o)
4: a )who b) what c) where d) while (gạch dưới chữ wh)