问题
选择题
Prices of daily goods ____ through a computer can be lower than store prices.
A．are bought
B．bought
C．been bought
D．Buying
答案
答案：B
考查分词做定语。Goods与buy构成被动关系，所以使用过去分词。Bought through a computer作为定语修饰daily goods。句意：通过电脑购买的日用品的价格要比商店的价格要低。