1. Many have been the victims of racial discrimination.
Многие являются жертвами расовой дискриминации.
have been - Present Perfect Active от глагола to be.
2. All the factories, mills, workshops and docks are concentrated in the East End.
Все фабрики, заводы, мастерские и доки сосредоточены в Ист Энде.
are concentrated – Present Simple Passive от глагола to concentrate