题干
— Did Alan enjoy seeing his old friends yesterday?
— Yes, he did. He _____ his old friends for a long time.
— Yes, he did. He _____ his old friends for a long time.
A：didn’t see
B：wouldn’t see
C：hasn’t see
D：hadn’t see
答案(点此获取答案解析）
D
交坐标轴于
的解集是（ ）