第1个回答 2013-06-26
过去含有be的肯定句
There was an apple on the table yesterday.
否定
There was not an apple on the table yesterday.
一般疑问
Was there an apple on the table yesterday?
肯定回答
Yes, there was
否定回答
No, there was not.
实意动词
肯定 I like swimming
否定 I don't like swimming
一般疑问 Do you like swimming?
肯定回答 Yes, I do
否定 No, I don't
过去式的实意动词
肯定句 I went to school by bus
否定句 I didn't go to school by bus
一般疑问 Did you go to school by bus?
肯定回答 Yes, I did.
否定回答 No, I didn't.