问题描述：
把下列英语句子改为被动语态,
35.we'll put on an English play in our school.
36.more and more farmers buy colour TV sets.
37.my brother often mends his watch.
38.we must water the flowers every day.
39.they use knives for cutting things.
40.he made the farmers work for a long time.
41.did he break the window yesterday?
42.they have sold out the light green dresses.
43.we clean the classroom every day.
44.you must not plant trees in very dry earth.
45.you can dig a hole in the earth.
35.we'll put on an English play in our school.
36.more and more farmers buy colour TV sets.
37.my brother often mends his watch.
38.we must water the flowers every day.
39.they use knives for cutting things.
40.he made the farmers work for a long time.
41.did he break the window yesterday?
42.they have sold out the light green dresses.
43.we clean the classroom every day.
44.you must not plant trees in very dry earth.
45.you can dig a hole in the earth.
问题解答：
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