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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 ●案例探究 【查看更多】

 

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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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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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