问题补充:
Particular attention must be paid welfare, especially in the poor area.
A. develop
B. to develop
C. to developing
D. developing
答案:
A. develop
B. to develop
(答案→)C. to developing
D. developing
解析:句意:应该特别重视发展人民的福祉,尤其是在贫困地区。句中用到了pay attention to doing sth重视做某事,的固定句型,本句中运用给了被动形式,故选C