摘要： Listen! Do you hear someone for help? A. calling B. call C. to call D. called [解析]:A.考查非谓语动词.该空在句中为非谓语动词作宾补.根据 someone与call的主动关系排除D项.hear后接不定式作宾补时应省略to.由此排除C项.由Listen可判断此处表示正在求救.故选A项.
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