问题
选择题
By the time you arrive in London, we in Europe for two weeks.[ ]
A. shall stay
B. have stayed
C. will have stayed
D. have been staying
答案
答案:D
By the time you arrive in London, we in Europe for two weeks.[ ]
A. shall stay
B. have stayed
C. will have stayed
D. have been staying
答案:D