Ответ:

1. That woman is my cousin. She is a teacher.

Those women are my cousins. They are teachers.

2. That girl is my niece. She is a pupil.

Those girls are my nieces. They are pupils.

3. This girl has a blue sweater.

These girls have blue sweaters.

Объяснение:

В этом задании надо заменить все формы ед. числа на формы множ. числа:

this - these

that - those

is - are

has - have

woman - women

girl - girls

и т. д.