She and her family hid away for nearly five years before they were discovered句中“For”的用法

题目

She and her family hid away for nearly five years before they were discovered句中“For”的用法

答案

for+时间,表示一段时间,在完成时、一般过去式中都可以用.
如：I have been in Shanghai for 20 years. 意思是我在上海呆了有20年了.