1) Поставбте предложения в вопросительную и отрицательную форму 2) Поставить вопросы

1. Are there any tree in the yard? There aren't any trees in the yard. What is there in the yard? 2. Did she have to stay at school after classes? She didn't have to stay at school after classes. Who had to stay at school after classes? What did she have to do after classes? When did she have to stay at school? 3. Does your sister go to school at 7 o'clock? My sister doesn't go to school at 7 o'clock. Who goes to school at 7 o'clock? At what time does your sister go to school? 4. Did we read this book last year? We didn't read this book last year. Who read this book last year? When did we read this book? What did we read last year? 5. Will you send a letter to your grandmother tomorrow? I shan't send a letter to my grandmother tomorrow. What shall I send to my grandmother tomorrow? Who shall I send a letter to tomorrow?