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谁帮我回答出这些动词的过去式!putcuthitreadletbeathurtcost有啥规律?keepsleepsweep有啥规律?teachcatch有啥规律?bringbuythink有啥规律?begindrinkringsingswimsit有啥规律?lendsendspendbuild

题目详情
谁帮我回答出这些动词的过去式!
put____ cut____ hit read let beat hurt cost 有啥规律?
keep sleep sweep 有啥规律?
teach catch 有啥规律?
bring buy think 有啥规律?
begin drink ring singswim sit 有啥规律?
lend send spend build 有啥规律?
sell tell 有啥规律?
say pay 有啥规律?
meet feed 有啥规律?
grow know throw fly 有啥规律?
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答案和解析
put____ cut____ hit read let beat hurt cost这几个的动词过去式及过去分词都不变,例如put-put-put cut-cut-cut等keep sleep sweep 这几个词的过去式和过去分词都是将最后的ep改成pt例如keep-kept-keptteach catch...