I stayed up all night ______ to find a new solution to the problem.

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问题 I stayed up all night ______ to find a new solution to the problem.

选项 A、trying
B、have tried
C、try
D、tried

答案A

解析 本题测试非谓语动词。根据句子结构,句中出现谓语stayed up,因此要填的词只能用非谓语动词形式,充当状语成分,应选A。
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本试题收录于: 英语题库成考专升本分类
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