第三人称单数系动词用什么？
2021-09-08
第三人称单数系动词在一般现在时态中用is。例如:this is a ruler.he is at school.Liming is 8 years old.his father is very tall and strong.it is a very moving story.在一般过去时态中用was。
例如:I was not at home yesterday.I was angry with my friend when he told me he was late again.she was very beautiful and outgoing when she was young。
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