题目

Believe it or not, by using some well-positioned indoor rugs, you can brighten yourhome, economize ___ heating, and increasecomfort considerably.

Believe it or not, by using some well- positioned indoor rugs, you can brighten your home, economize ___ heating, and increase comfort considerably.

题目解答

答案

本题考察“economize”与介词的搭配。根据句意，“economize on heating”最恰当，表示“在取暖方面节省”。其他选项如“in”或“with”均不符合习惯用法。完整句子为： "Believe it or not, by using some well-positioned indoor rugs, you can brighten your home, economize on heating, and increase comfort considerably." 答案：on