— Who is girl reading under the tree?
—She is Liu Mei. She wrote unusual book about the school life.
A. a, the
B. the, a
C. the, an
D. a, an
网友回答
A. a, the
B. the, a
(答案→)C. the, an
D. a, an
解析：不定冠词表示任何一个,定冠词特指某一人或物.根据题意,上文中女孩是指树下的女孩,为特指.下文中一本书是泛指, unusual开头为元音音素,所以应该用an.选C.