问题

There is ______ “b” and _______“s” in the word “bookcase”.
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
Do you know _her mobile phone?一 No, I think it cost her around 4000 yuan.
How old is your mother? —She is ______years old. Today is her ______birthday.
The teachers in that school speak either English or French or even _____— That’s cool.
My mother _______ me a computer as a birthday present next year.
I can’t remember when exactly the Robinsons left _____ city. I only remember it was ______ Sunday.