题目内容：

句型转换

1.I did my homework yesterday.(改为否定句)  

I_____ ______ my homework yesterday.

2.Vera visited the Great Wall last Sunday.(改为一般疑问句)

______Vera _____  the Great Wall last Sunday?

3.She went to New York on vacation.(就划线部分提问)  

_______ did she ______ on vacation?

4.He ate nothing for breakfast.(改为同义句)

He _____ ______ _________ for breakfast.

5.He didn’t go to school because he was ill.（改为同义句) 

He didn’t go to school _______ _______ his illness.