句型转换。
1. The dress cost so much that she didn't buy it.（用too … to …改写）
The dress cost her buy.
2. It rained yesterday, so I stayed at home.（用because改写）
it yesterday, I at home.
3. My parents will go to America in two weeks.（对划线部分提问）
your parents to America.
4. People use thermoses (热水瓶)for keeping water warm.（改为被动语态）
Thermoses water warm。
5. I hardly ever meet him after he moved to another district.（对划线部分提问）
you meet him after he moved to another district?
6. Collecting coins interests the small boy.（用interested改写）
The small boy coins.
7. Basketball was invented by a Canadian doctor.（改为主动语态）
A Canadian doctor.