问题
选择题
The Whites are ___ holiday.But I don't know where they have gone___ their holiday.
A．in, for
B．on, for
C．for, in
D．at, on
答案
答案：B
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The Whites are ___ holiday.But I don't know where they have gone___ their holiday.
A．in, for
B．on, for
C．for, in
D．at, on
答案：B