practice的现在分词是practicing还是practising?

practice的现在分词是practicing还是practising? practice的现在分词形式是practicking吗?还是practicing? 实习会计是"practising accountant "还是"practicing" put into practice 还是practicing practice 的现在分词是什么? 应该是keep practice还是keep practicing practice现在分词,急 practicing speaking English is very important.还是practice I never enjoy(practicing)(practising)the piano clean的反义词 play第三人称单数 practice现在分词 是现在分词还是过去分词. dinner的现在分词是dinning还是dining