A．broke up B．broke out C．broke off D．broke down
单项选择题Don't worry. （）you work hard, yon are sure to pass the exam.
A．As much as B．As well as C．As soon as D．As long as
单项选择题John's success in his career will be a great（）to his aged parents.
A．satisfaction B．concentration C．attraction D．solution
