问题
选择题
You'll have to book a ticket ________ if you want to see that show.[ ]
A. on time
B. in advance
C. on schedule
D. in time
答案
答案：B
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You'll have to book a ticket ________ if you want to see that show.[ ]
A. on time
B. in advance
C. on schedule
D. in time
答案：B