5предложений и 5 вопросов по предложениям на каждое время: present continuous, past continuous, future simple, past simple

1.Lena is doing her homework at the moment.
What is Lena doing at the moment?
2.When you called I was eating my breakfast
Who was eating breakfast when he called?
3. I will travel next summer.
What will i do?
Will i or my dad travel next summer?
4. He prepared homework yesterday
What did he prepare yesterday?
Did he prepare homework yesterday?