Listen! Do you hear someone ________ for help?
A. calling B. call C. to call D. called
Listen! Do you hear someone ________ for help?
A. calling B. call C. to call D. called
【解析】选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。