问题补充:
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
答案:
(答案→)A. did you stay
B. have you stayed
C. were you staying
D. have you been staying
解析:可联系答.案.网客服索取。
时间:2021-06-25 02:40:26
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
(答案→)A. did you stay
B. have you stayed
C. were you staying
D. have you been staying
解析:可联系答.案.网客服索取。