what is the difference between....

Could you please tell me the difference between two options in the following question?

" So, are you coming along, after all?"
" Well, I don't know. What time .............?"

A. you're leaving
B. will you be leaving ( this is the correct item to the key)
C. will you leave
D. do you leave

Now what is the difference between "What time will you leave" and "What time will you be leaving"?

[Casiopea]

Originally Posted by dmt_mst

Could you please tell me the difference between two options in the following question?

" So, are you coming along, after all?"
" Well, I don't know. What time .............?"

A. you're leaving
B. will you be leaving ( this is the correct item to the key)
C. will you leave
D. do you leave

Now what is the difference between "What time will you leave" and "What time will you be leaving"?

Speakers do in fact use C., but B. is the better answer because it shares a progressive/continuous verb form with the Question. That is, the question and the answer both have "be -ing" / "are -ing", like this,

Q: Are you coming along?
A: What time will you be leaving?
OR
A: What time are you leaving?

All the best, :D