Задайте вопросы к подлежащему и дайте краткий ответ 1.they like to write letters? 2.they are at school? 3.they look after the baby? 4.they go to school?

1. Who likes to write letters? They do.
2. Who is at school? They are.
3. Who looks after the baby? They do.
4. Who goes to school? They do.