题目内容
13. 1 have lots of trouble the maths problem. Can you help me?
A. solve B. solved C. to solve D. solving
13. D have trouble doing sth.意为“做某事有困难”,属于固定结 构。故选D.
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题目内容
13. 1 have lots of trouble the maths problem. Can you help me?
A. solve B. solved C. to solve D. solving