______Easter break, a skeleton staff of volunteers will maintain all essential services to keep the business running.

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问题 ______Easter break, a skeleton staff of volunteers will maintain all essential services to keep the business running.

选项 A、While
B、Ahead
C、During
D、Since

答案C

解析 Easter break((复活节假期)是名词短语,因此横线处应填入介词。在(C)during(在…期间)和(D)since(自从)间选择符合句意的即可。答案是(C)during。
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