laugh过去式,过去式和过去分词表

单元新词对应 laugh (动词)大笑拓展 过去式:cried 动词-ing:crying
why do we laugh?
if you are happy,you can laugh. if you are sad you can cry.
shout show visit stop look walk laugh 二,用所给动词的适当形式
laugh to keep from crying (rire pour garder de pleurer) paroles