◎ 题干
Since he joined the swimming team, he has _____ to swim across the wide river. 

[     ]

A. able
B. could
C. can
D. been able
◎ 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“Since he joined the swimming team, he has _____to swim across the wide river. [ ]A. able B. could C. can D. been able…”主要考查了你对  【情态动词】  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。