Поставьте существительное во множественном числе, изменяя также указательные местоимения и форму глагола to be

These cafes are very good. Guests took them seats at the table. New restaurants are in our street. These cafes are new. Put these knifes on the table. Are these a tasty dishes?What are them names? These waiters put a knife, a fork and a spoon on the table.These men work in the kitchen. These are my books.These napkins were on the table. These restaurants are large. Are these men a waiters?