keep doing和keep sth do
I was so tired that i couldn't keep my eyes ______.A.opening B.open C.opened D.to open.
为何选B而不是选A?
人气：375 ℃ 时间：2020-01-12 06:21:25
解答
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.
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