句型转换
1. Jim found the lost child in the park.（改为被动语态）
The lost child by Jim in the park.
2. The kite was made by my grandfather.（就画线部分提问）
was the kite made ?
3. The computer was invented in 1976.（就画线部分提问）
the computer invented?
4. The knife is used for cutting things.（就画线部分提问）
is the knife used ?
5. Is the song sung by Sun Nan?（改为主动语态）
Sun Nan the song?
6. I think the computer is the most useful invention.（就画线部分提问）
you think the most useful invention？
7. The microwave oven is used for cooking food. （改为同意句）
The microwave oven is used food.