Have you realized the difficulty we have ____ the problem? A．worked out B．to work out C．work out D．w...
2023-01-24 12:47:36 28次 2010年长春市高二年级开学验收考试英语卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Have you realized the difficulty we have
____ the problem?
|
A．worked out
|
B．to work out
|
C．work out
|
D．working out
|
本题链接：
