问题

I have ________ useful knife and my sister has _______ eraser.
A:a; an
B:an; a
C:a; a
D:an; an
B:an; a
C:a; a
D:an; an
正确答案是:
同类题型
One million, two hundred thousand and twenty-six means _______.
I mean ______ class meeting on Monday afternoon.
Not only ______ prepare lunch for us, but also _______ clothes for us.
_____ have you been on the school football team?[ ]
Some foreigners will visit our school tomorrow.—Great! It’s ______to tide up our school now.