к каждому вопросы what/when/where/who

She leaves home at 8 o'clock.

   What does she leave at 8 o'clock?    Where does she go at 8 o'clock?    Who leaves home at 8 o'clock?    When does she leaves home?

They are joining us.

   What are they doing?    Where are they joining us?    Who is joining us?    When are they joining us?

I go to school in the afternoon.

   What do I do in the afternoon?    Where do I go in the afternoon?    Who is going to school in the afternoon?    When do I go to school?

The father is reading a newspaper now.

   What is the father reading now?    Where is the father reading a newspaper now?    Who is reading a newspaper now?    When is the father reading a newspaper?

My friend is a student.

   What is doing my friend?    Where is my friend?    Who was a student?    When was my friend a student?