10.What is the maiidea of the passage？
·Cooperatioisports.
·Problems of a team leader.
·Good coaches.
·Effective teamwork.

单选题
·each member emphasizes their strengths and minimizes their weaknesses
·The manager should find the problems and take corrective actions.
·they do not understand how to make their group into a productive team
·the ordinary members of an organization
·Effective teamwork.