◎ 题干
The girl wearing glasses was observed _____ in class by her teacher.
[     ]
A. to talk
B. to be talking
C. talking
D. to have talked
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“The girl wearing glasses was observed _____in class by her teacher.[ ]A. to talk B. to be talking C. talking D. to have talked …”主要考查了你对  【现在分词】  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。