摘要： To the teacher’s surprise, the boy had no out the maths problem. A. difficulty to work; difficult B. difficult working; difficulty C. difficulty working; difficult D. difficulty in working; difficulty
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To the teacher's surprise, the boy had no ____ out the ____ maths problem.
[ ]
A. difficulty to work; difficult
B. difficult working; difficulty
C. difficulty working; difficult
D. difficulty in working; difficulty
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B. difficult working; difficulty
C. difficulty working; difficult
D. difficulty in working; difficulty