最佳答案:sit的过去式sat过去分词sat
最佳答案:sent sit slept smelled spelled won stood taught told thought
最佳答案:sees gets tries stops sits singsseeing getting trying stopping sitting singingsa
最佳答案:swim-swims-swimming-swamdie-dies-dying-diedsit-sits-sitting-satsee-sees-seeing-s