填空题about ∧ people—the

单项选择题A．general pessimism aboutB．some doubt aboutC．different interpretations ofD．much optimism about

单项选择题A．it helped him earn extra moneyB．his season was overC．he needed more experienceD．he could improve his skills

填空题returns

单项选择题A．24B．27C．18D．20