Question

【题目】—When did the Greens come to China?

—They_____ China for seven years.

A. have come to B. have been to

C. have come in D. have been in

Answer 1

【答案】D

【解析】试题分析：根据when引导的时间状语从句要用一般过去时态但是根据下文的回答for+一段时间可知用现在完成表示持续的状态。have been to表示去过某地；have been in表示呆在某地多长时间；句意：格林一家何时来中国？根据语境故选D