There is “f” and “d” in the word “food”.A. a; anB. a; aC. an; anD. an; a

问题补充：

There is “f” and “d” in the word “food”.

A. a; an

B. a; a

C. an; an

D. an; a

答案：

A. a; an

B. a; a

C. an; an

(答案→)D. an; a

解析：句意：单词food里有一个f和一个d。字母f读音[ef]，以元音因素开头，前面用不定冠词an，字母d读音[di:],以辅音因素开头，用不定冠词a.