◎ 题干
To improve his English,he spends _______ one hour a day listening to English programmes.
[     ]
A. at last
B. at least
C. at once
D. at all
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“To improve his English,he spends _______ one hour a day listening to English programmes. [ ]A. at last B. at leastC. at once D. at all …”主要考查了你对  【介词短语】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。