初三英语把下列句子改成被动语态

初三英语把下列句子改成被动语态
1.More and more farmers buy colour TV sets.Colour TV sets___ ___ ___more and more farmers.
2.My brother often mends his watch.His watch___ ___ ___by my brother.
3.We must water the flowers every day.The flowers must___ ___(by us)every day.
4.They use knives for cutting things.Knives___ ___for cutting things.
5.He made the farmers work for a long time.The farmers___ ___ ___ ___for a long time.
6.Did he break the window yeaterday?___the window___ ___ ___yesterday?
7.They have sold out the light green dresses.The light green dresses__ __ ___out.
8.We clean the classroom every day.The classroom ___ ___every day.
9.You must not plant trees in very dry earth.Trees__ ___ ___ __in very dry earth.
10.You can dig a hole in the earth.A Hole ___ ___ ___in the earth.