50.I was so tired that I couldn't keep my eyes _____A.openingB.openC.openedD.to open
问题描述:
50.I was so tired that I couldn't keep my eyes _____
A.opening
B.open
C.opened
D.to open
答
A
答
B. open
答
B.open
open
这里作adj.敞开的;
我非常累以致眼睛睁不开了.