5. I always keep my room clean.

My room 　　　　　　　　always　 　　　　　　　clean by me.

4. Students clean the classroom every day.

The classroom 　　　　　　　　　　　　　　　every day.

3. People use knives for cutting things.

Knives 　　　　　　　　　　　　　　　for cutting things.

2. My father mends the car by himself.

The car 　　　　　　　　　　　　　　　by my father himself.

1. They sing an English song before class every day.

An English song 　　　　　　　　　　　　　　　　before class every day.

5. Cotton 　　　　　　　　　(plant / is planted) in the south-east of China.

4. Doctors 　　　　　　　　　(need / are needed) in every part of the world.

3. The new book 　　　　　　　　　(sells / is sold) very well.

2. The cake 　　　　　　　　　(tastes / is tasted) very delicious.　

1. The old people here 　　　　　　　　(look / are looked) after well.