【题目】The fact that so many people still smoke in public places________ that we may need a nationwide campaign ________ awareness of the risks of smoking.
A. suggest; raise B. suggests: raising
C. suggest; raised D. suggests; to raise
在线课程【答案】D
【解析】suggest“暗示，表明”，其主语为the fact 是单数形式，故用第三人称单数。第二个空格用不定式表示目的。