问题
填空题
写出下列单词的过去式。
eat → ate see → buy →
do → go → have →
答案
see-saw, buy-bought, do-did, go-went, have-had
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写出下列单词的过去式。
eat → ate see → buy →
do → go → have →
see-saw, buy-bought, do-did, go-went, have-had