写出下列单词的过去式:am/is,are,begin,buy,come,do,eat,get,give,go,have/has,make,run,sing,take,swimmeet,spend,read,see

问题描述:

写出下列单词的过去式:am/is,are,begin,buy,come,do,eat,get,give,go,have/has,make,run,sing,take,swim
meet,spend,read,see