国家开放大学 / 综合英语(1)
正确率:100%
Ever since Picasso’s painting went on exhibit, there _ _ _ _ large crowds at the museum every day.
a.has been
b.have been
c.are being
d.is
a.has been
b.have been
c.are being
d.is
参考答案:
佳题速递: