问题
This is _________ useful dictionary, I think.— So it is, and it’s _________unusual one.
A:the/ a
B:a /an
C:a/a
D:不填/ an;
B:a /an
C:a/a
D:不填/ an;
正确答案是：
同类题型
It was such an __________ performance that it ___________ all the audience.
I’ll do an interview with Mrs Black if she busy tomorrow.
He never hides his real opinionstowards others. _____, he is a person with a frank personality.
He is the only one of the students who a winner of scholarship for three years