国家开放大学 / 综合英语（1）
正确率：100%
The housewives learnt about the offer of free goods _ _ _ _ _ _ _ _ _ .
a.at the supermarket
b.from the manager
c.on the radio
d.from their
a.at the supermarket
b.from the manager
c.on the radio
d.from their
参考答案：
佳题速递：