Question

【题目】—______ did your sister leave China?

—She______ for three 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：考查动词的时态辨析。－你姐妹何时离开中国的？－她离开有三年了。Leave是一个非延续性动词，不与表示一段时间的for, since, how long连用，与表示一段时间的状语连用时，用成be away。故选B。