What about the price of these washing machines?They are equal in price to if not

问题补充：

--- What about the price of these washing machines?

--- They are equal in price to, if not cheaper than, at the other shops in the street.

A. others

Bit

Cthat

Dthe ones

答案：

A. others

B. it

C. that

(答案→)D. the ones

解析：考查代词：句意：--洗衣机的价格怎样？--这家商店的洗衣机和街上其他家的相比，就算不便宜些，价钱也差不多。the ones 代替 washing machines（另一家商店的洗衣机），A是其他的，B是它，Cthat是特指前面出现的可数名词单数和不可数名词。选D。