Замените выделенные слова личными местоимениями:
Victor helped the "guests" to choose the"wine".
"Mother" asked "Mary" to wash the "plates".
"My friend" prepares the "breakfast".
"Jane" took "three cups" from the table.
"His cousins" live in Moscow.
The guests will come tommorow.
"Mary" works in the kitchen.

Victor helped them to choose it.She asked her to wash them.He/she prepares it.She took them from the table.They live in Moscow.They will come tomorrow.She works in the kitchen.