- Testing the soil proved it was polluted by factories._ˈtes.tɪŋ ðə sɔɪl ˈpruːvd ɪt wəz ˌpəˈluː.tɪd baɪ ˈfæk.tər.iz. Testing de soil pruvd it ues pelutid bai fèkteris.I test del suolo hanno dimostrato che era inquinato dalle fabbriche.ˈtes.tɪŋ ðə sɔɪl ˈpruːvd ɪt wəz ˌpəˈluː.tɪd baɪ ˈfæk.tər.iz. Testing de soil pruvd it ues pelutid bai fèkteris.
Testing the soil proved it was polluted by factories.