Make these sentences passive. 
1. They speak French in France. 
2. Mary washed the dishes. 
3. The teacher answered the questions. 
4.The teacher has explained these rules to us. 
5. They are translating this article now. 
6. This mine will produce large quantities of coal next year.

French is spoken in France(by them)

the dishes were washed by Mary

the questions were answered by the teacher

these rules have been explained to us by the(our)teacher

this article is being translated (by them)now

large quantities of coal will be produced by this mine next year

French is spoken in France by them

The dishes were washed by Mary

The questions were answered by the teacher

These rules have been explained by the teacher to us

This article is being translated by them now

Large quantities of coal will be produced by this mine next year