— Can I call you back at two o'clock this afternoon?
— I'm sorry, but by then I ________ to Beijing. How about five?[ ]
A. fly
B. will fly
C. will be flying
D. am flying
答案:C
— Can I call you back at two o'clock this afternoon?
— I'm sorry, but by then I ________ to Beijing. How about five?[ ]
A. fly
B. will fly
C. will be flying
D. am flying
答案:C