题目

他成功地解出了这道数学题。 He ____________ the maths problem. 答案：succeeded in working out/successfully worked out/was successful in working out【详解】 成功地做某事 succeed in doing sth./be successful in doing sth./successfully do sth.；解出 work out 。根据 “ 成功地解出了 ” 可知要用一般过去时，谓语动词用过去式。故填 succeeded in working out/successfully worked out/was successful in working out 。用竖式计算，并验算． (1)9.32×15 (2)0.6÷24