You must keep your eyes . A. closeB. closedC. closingD. to close

问题补充：

You must keep your eyes .

A. close

B. closed

C. closing

D. to close

答案：

A. close

(答案→)B. closed

C. closing

D. to close

解析：句意：你必须保持你的眼睛闭着。Keep sb doing sth / keep sth +adj/ved(作宾语补足语)，根据句意和语境，故选B。