Youcan’timaginewhatdifficultyIhad
问题详情:
You can’t imagine what difficulty I had ______ the problem.
A. working out B. work out
C. to work out D. worked out
【回答】
A
知识点:非谓语动词
题型:选择题
问题详情:
You can’t imagine what difficulty I had ______ the problem.
A. working out B. work out
C. to work out D. worked out
【回答】
A
知识点:非谓语动词
题型:选择题