The children went home from the grammar school, their lessons_____for the day [ ]

Kate won the ________ race in the summer sports meeting.

Is this the reason ________ at the meeting for his carelessness in his work?[ ]

She spent all her spare time learning the courses, or she________ the first place in her school in the 2010 College Entrance Examination.

John was dismissed last week because of his _____ attitude towards his job. [ ]