Glad to see you back. How long in Russia? A. did you stay B. have you stayed C.

Glad to see you back. How long ________ in Russia?
A. did you stay　        B. have you stayed      C. were you staying　     D. have you been staying

试题答案

A

由前句可知，“You”已回来了（不在俄罗斯），那么“You”在俄罗斯呆了多久是指过去的时间。