摘要： 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
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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
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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
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B. have you stayed
C. were you staying
D. have you been staying
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
查看习题详情和答案>>