Is this elephant or lion?A. a; an B. the theC. an ; aD. an; the

问题补充：

Is this elephant or lion?

A. a; an

B. the, the

C. an ; a

D. an; the

答案：

A. a; an

B. the, the

(答案→)C. an ; a

D. an; the

解析：句意:这是一头大象还是一头狮子?结合语境可知本句中泛指任何一头大象或者一头狮子,故用不定冠词. elephant词首音素是元音,故不定冠词用an,lion词首音素是辅音,故不定冠词用a. 选C.