—What’s this in the photo?—It’sUFO.I took the photo.A. aB. anC. theD. /

问题补充：

—What’s this in the photo?

—It’sUFO.I took the photo.

A. a

B. an

C. the

D. /

答案：

(答案→)A. a

B. an

C. the

D. /

解析：句意：照片里这是什么？这是一张我照的UFO的照片。UFO为辅音音素开头发音的单词，故用a，来修饰，故选A