题干
--- Mike, it’s a pity you didn’t come to last night’s concert. It was really great!
--- Really? If I ________ so busy, I would have gone with you.
--- Really? If I ________ so busy, I would have gone with you.
A：hadn’t bee
B：weren’t
C：shouldn’t be
D：wouldn’t be
答案(点此获取答案解析）
A
, 0, 3的中位数是
