1、
Several verbs have alternative regular and irregular past tense and past participle forms.
有些动词兼有规则和不规则的过去式和过去分词的形式.
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2、
3、
TRICK QUESTION! They are simply testing whether you can use the past tense correctly!
技巧问题! 他其实是在测试你是否会运用过去式回答!
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4、
