Travelers had better get their reservations well______ if they want to fly durin

游客2023-11-23 55

问题 Travelers had better get their reservations well______ if they want to fly during the Christmas holidays.

选项 A、in advance
B、in hand
C、in place
D、in case

答案 A

解析意义为“预先”，B为“工作等在进行中”，C为“在合适的位置”，D为“以防万一”。

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