问题

Today is ______ unusual day because his dream of entering _______ university has come true.
A:a, a
B:an, an
C:an, a
D:a, an;
B:an, an
C:an, a
D:a, an;
正确答案是:
同类题型
A new ________ bus service to Yangzhou-taizhou Airport started to operate two months ago.
What can I do for you, sir —I’d like two____________. We all like fruit.
Why not come over at the weekend My family _______seeing you again.
We were caught in the heavy traffic jam. Otherwise, we _____ on time.