—— Mary cleaning her room? ——No, she is .
A. Does, reads
B. Can, read
C. Is, reading
D. Does, reading
网友回答
A. Does, reads
B. Can, read
(答案→)C. Is, reading
D. Does, reading
解析：此题考查现在进行时的一般疑问句的基本句式结构，be+主语+现在分词及其简略回答。Mary为单数第三人称做主语，谓语动词应用单数，所以用is，句意：玛丽正在清扫房间吗？不，她正在读书。所以选C。