第19题: [单项选择]--______may I______ the book -- For three weeks.
A. How often; borrow B. How often; keep C. How long; borrow D. How long; keep 参考答案:D 答案解析:[解析] 本题考查疑问副词搭配和动词辨析。how often提问频率,多长时间一次;how long提问时间或距离长度;borrow为非延续性动词,keep是延续性动词。根据答语for three w