English

Chinese (simplified) This item is in Chinese (simplified).

be动词的用法：I am，you/we/they are，he/she/it is；肯定句、疑问句（Am I. 一般过去时：规则动词加 -ed，不规则动词（go/went, have/had, get/got, eat/ate 等），疑问句 Did.

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