Điền từ chỗ trống

By the time you arrive , we ( already / finish ) __________________ dinner.
She ( study ) ________ for her exam when her friend calls her . 
Next week , I ( not work ) ________ on Monday .
They ( wait ) _______ for you at the park at 3 p.m tomorrow . 
I ( read ) ______ a book when you come over .