国家开放大学 / 综合英语（1）
正确率：100%
I _ _ _ _ _ _ the Picasso exhibit yet. How about you?
a. didn't visit
b.wasn't visiting
c. hadn't visited
d. haven't visited
a. didn't visit
b.wasn't visiting
c. hadn't visited
d. haven't visited
参考答案：
佳题速递：