Question

The seas (to fill) with poison:industrial and nuclear waste,chemical fertilisers and pesticides.

Answer 1

The seas are fiiled with poison:industrial and nuclear waste,chemical fertilisers and pesticides.

Answer 2

The seas  filled with poison:industrial and nuclear waste,chemical fertilisers and pesticides.

Моря заполнены  ядом-промышленные и ядерные отходы, химические удобрения и пестициды.