— Where is Mary?
— She must be in the bedroom. I heard her ______ when I passed two minutes ago. |
|
[ ] |
A. singing
B. to sing
C. writing
D. to write |
根据n多题专家分析，试题“— Where is Mary? — She must be in the bedroom. I heard her ______ when I passed two minutes ago. [ ]A. singing B. to sing C. writingD. to write …”主要考查了你对 【分词】 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。
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