It remains whether Jack will be fit enough to play in the final.A. seenB. to be seenC. see

问题补充：

It remains whether Jack will be fit enough to play in the final.

A. seen

B. to be seen

C. seeing

D. to see

答案：

A. seen

(答案→)B. to be seen

C. seeing

D. to see

解析：考查固定句型。It remains to be seen...“......还有待观察”。句意“杰克是否足够适合打决赛还有待考察。”故选B。