3.Top accommodations can be _____ weeks or even months in advance, so it's best to plan ahead before travelling abroad.
(A)filled out
(B)held back
(C)booked up
(D)set aside

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統計： A(0), B(0), C(12), D(1), E(0) #3853062

詳解 (共 1 筆)

#7572835
答：(C)　句意是頂級住宿可能提早很久就...
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