Her remarks left me wondering______she could have changed so suddenly.

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问题 Her remarks left me wondering______she could have changed so suddenly.

选项 A、when
B、how
C、whether
D、that

答案B

解析 when,whether,how以及that均可以引导宾语从句,但含义不同。when:何时;how:如何,怎么;whether:是否;that在宾语从句中无实义。根据句意,选B。
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本试题收录于: 英语题库普高专升本分类
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