问题补充:
I have useful knife and my sister has eraser.
A. a; an
B. an; a
C. a; a
D. an; an
答案:
(答案→)A. a; an
B. an; a
C. a; a
D. an; an
解析:useful词首音素是辅音,故不定冠词用a;eraser词首音素是元音,故不定冠词用an,选A。
时间:2021-08-08 15:20:46
I have useful knife and my sister has eraser.
A. a; an
B. an; a
C. a; a
D. an; an
(答案→)A. a; an
B. an; a
C. a; a
D. an; an
解析:useful词首音素是辅音,故不定冠词用a;eraser词首音素是元音,故不定冠词用an,选A。