【题目】It remains whether he will be fit enough to play in the finals.
A.seeingB.seenC.to seeD.to be seen
在线课程【答案】D
【解析】
考查非谓语动词。句意：他是否能在决赛中上场还有待观察。固定结构sth. remain to be done“某事有待被做”。it为形式主语，真正主语为whether he will be fit enough to play in the finals。故选D。