B
keep sth.+形容词 把...保持在...状态
类似有:keep one's eyes open;keep one's eyes closed
因为open本身可以作为形容词,而close作形容词是"近"的意思,所以加ed,用过去分词作形容词.
B
keep sth.+形容词 把...保持在...状态
类似有:keep one's eyes open;keep one's eyes closed
因为open本身可以作为形容词,而close作形容词是"近"的意思,所以加ed,用过去分词作形容词.