问题
Most people think that English is ___________ useful language, but some students think it’s ___________ unimportant subject.
A:a, an
B:a, a
C:an, an
D:an, a
B:a, a
C:an, an
D:an, a
正确答案是：
同类题型
How can we deal with these old clothes? —We can _____ to charity.
You seem to like sweets.—_______. That’s probably why I’m becoming fatter and fatter.
What’s this?—It’s ________orange.
That bicycle ________ belong to Judy. It’s much too big for her.
Why don’t you answer my question, Bill? —difficult for me to answer. [ ]