A．Because they're quite impressive with a strong effect. B．Because they are not so frustrating as other expressions. C．Because they are practiced and repeated once and again. D．Because they are most people's favorite words.
A.Because B. B．Because C. C．Because D. D．Because E.
【参考答案】
A 解析：Why needn't the man practice swear words? 选项表明，......