______you______further problems with your printer, contact your dealer for advice.

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问题 ______you______further problems with your printer, contact your dealer for advice.

选项 A、If...had
B、Have...had
C、Should...have
D、In case...had

答案C

解析 虚拟语气题。根据句意,本句表示对将来事情的虚拟,条件从句中谓语动词可以使用“should+动词原形”结构;如果省略条件从句引导词if的话,should就应该提到句首,因此本题应该选[C]。
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