—— __   Mary cleaning her room?     ——No, she is __  .A.Does, readsB.Can, readC.

—— __   Mary cleaning her room?     ——No, she is __  .A.Does, readsB.Can, readC.

题型:不详难度:来源:
—— __   Mary cleaning her room?     ——No, she is __  .
A.Does, readsB.Can, readC.Is, readingD.Does, reading

答案
C
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。
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