如题所述
be动词有两个用法:
1, 作系动词(有实意）: He is a student. I was busy.
2, 作助动词（无实意）：He is doing his homework. I was told about the news.
1, 作系动词(有实意）: He is a student. I was busy.
2, 作助动词（无实意）：He is doing his homework. I was told about the news.
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第1个回答 2016-07-30
是的。
be动词的实质是一个助动词追答
be动词的实质是一个助动词追答
后面接形容词/名词/介词/代词/非谓语动词/表语从句
