There is no doubt______ you will pass the exam this time. You have worked so hard in the past months.

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问题 There is no doubt______ you will pass the exam this time. You have worked so hard in the past months.

选项 A、whether
B、that
C、if
D、what

答案B

解析 宾语从句,引导词用that。由于主句是否定句,所以引导词用that。若doubt用于肯定句,则可用whether,if。
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