One afternoon, when the lessons were over, John and Mike Green
didn’t go home. They (11) in school to help their teacher.
Their teacher was (12) a library in the school and the boys
helped him to carry some books. They worked (13) . Then the
teacher said, "Thank you, boys, we will (14) the work
tomorrow. Now you must go home." When the boys got home, it was seven o’clock.
It was (15) outside but there was a fight inside their home
and the door was open. They could see a man inside.