专升本考试

试题来源：专升本英语-1
【单选题】 Your sister used to visit you quite often, ______
A．isn't she
B．use not she
C．wasn't she
D．didn't she

参考答案：D
网考网解析：
句中used可看作是use的过去式． ... 查看试题解析出处>>