1. When/Nam/ten/he speak/ English/phone.
=> When Nam was ten, he spoke English on phone.
2. My sister/write/poems/she eight.
=> My sister wrote poems when she was eight
3. They/worried/that/some people/use/robots/bad things.
=> They worried that too some people to use robots is wrose things
5. If/we/recycle/old newspapers/we/save/lot/labour/trees.
=> If we recycle old newspapers we will save a lot of labour of trees