摘要：To the teacher’s surprise, the boy had no out the maths problem. 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