学进去

根据要求改写句子
1. There are a lot of cars in the street. (改为单数句)
There ________ ________ ________ in the street   
2. I spent one hour doing my homework. (保持原句意思)
It ________ me one hour ________ ________ my homework.   
3. My home is near my school. (保持原句意思)
My home is not ________ ________ ________ my school.   
21.They went to the museum yesterday morning. (改为否定句)
They________ ________ to museum yesterday morning.   
4. Mary and I cleaned the classroom after school. (改为一般疑问句)
________ Mary and you ________ the classroom after school?   
5. Did you take a train to Beijing?(改为肯定句)
We ________a train to Beijing.   
6. My father usually goes to work by car. (保持原句意思)
My father usually ________ ________ ________ to work.