Question

【题目】-_______ did your uncle leave his hometown? – He _______ for nearly twenty years.

A. When; has left B. When; has been away

C. How long; has left D. How long; has been away

Answer 1

【答案】B

【解析】

试题分析：when什么时候；how long多长；根据下文时间状语，将近二十年了。可知上文提问的是时间长短，下文描述的是从过去某时持续到现在的状态，故谓语动词用持续性动词，故选B。