问题
选择题
I won't be able to watch the concert on TV tonight because I _____ my homework at that time.[ ]
A. do
B. will be doing
C. will do
D. am doing
答案
答案：B
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I won't be able to watch the concert on TV tonight because I _____ my homework at that time.[ ]
A. do
B. will be doing
C. will do
D. am doing
答案：B