单项选择题
A．sick B．ashamed C．afraid D．tired
A．They had to borrow money to keep it going. B．They made just enough to cover all the costs. C．They succeeded in earning a lot of money. D．They failed though they worked har
A．at all times of the day and night B．at all times, right through the week C．two or three times a week D．day and night, right through the week