请帮我看看非谓语做得对吗？21.By1980,about90%o
21. By 1980, about 90% of that country's income came f gas and oil production, ____ the country ____ taxes. a.to enable;reducing b.enabling;reducing c.enabling;to reduce d.to enable;to reduce 我选c 22. Now ____ from office, Clinton divides his time ____ po
21 C正确。22题A，divide into 固定搭配。23题B,不定式做非谓语动词表示目的，你可以把前半句放到后面读一读。24题正确。25题正确。