Question

— 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

Answer 1

C

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.