We saw a lot of cars in the street. 改为被动语态
My little sister used to be afraid of the dark. 改为反义疑问句
We saw a lot of cars in the street. 改为被动语态
My little sister used to be afraid of the dark. 改为反义疑问句
A lot of cars were seen in the street.
My little sister used to be afraid of dark, wasn't she?
1. A lot of cars were seen by us in the street
2. My little sister used to be afraid of the dark, didn't/usedn't she?
A lot of cars were seen by us in the street
My little sister used to be afraid of the dark, didn't she?