好的我加分！帮我把这些英语句子改成被动语态

Question

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1 They use ice to make the room cool.
2 The sad movie made Julia very sad .
3 Mary filled the glass with orange juice.
4 He introduced Bill to Monica.
5 They used to do it this way.
6 We've talked about this topic for years.
7They don't allow students to smoke.
8 Whatmust we do before class?(这句句子先改成陈述句，再把所改陈述句改成被动语态，再将其改成疑问句)

Answer 1

1 ice is used by them to make the rom cool.
2 julia was made very sad by the sad movie
3. orange juice was used to fill the glass
4 Bill was introduced to Monica by him.
5 It was used to be done this way by them
6 the topic has been talked about by us for years.介词不能丢
7students are not allowed to smoke by them.
8. we must do what before class-- 最后的结果what must be done by us before class

Answer 2

1.Ice is used to make the room cool.
2.Julia was made very sad by the sad movie.
3.The glass was filled with orange juice by Mary.
4.Bill was introduced to Monica by him.
5.It was used to be done this way.
6.The topic have been talked about for years.
7.Students are now allowed to smoke.
8.陈述句：We must do something before class.
被动语态陈述句：Something must be done before class.
疑问句：Must something done before class？

Answer 3

1 Ice is used to make the room cool by them
2 They said Julia was made to be sad by movie.
3 The glass was filled with orange juice by Mary.
4 Bill was introduced to Monica by him.
5 It was used to be done this way by them.
6 This topic have been talked by us for years.
7 Students are not allowed to smoke by them.
8 We must do something before class.
Something must be done before class
Should something be done before class?

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Answer 4

Ice is used to make the room cool by them
Julia was made sad by the sad movie
The glass was filled with orange juice by Mary
Bill was introduced to Monica by him
It was used to be done this way by them
This topic has been talked about for years
Students are not allowed to smoke by them
We must do what before class. What must be done before class by us. What must be done before class by us?本回答被提问者采纳

Answer 5

1.Ice is used to make the room cool by them.
2.The sad Julia was made very sad by movie.
3.The glasses was filled with orange juice by Mary.
4.Bill was introduced to Monica by him.
5.It used to be done this way by them.
6.This topic has been talked about for years byus.
7.Students are not allowed to smoke by them.
8.We must do what before classes.
What must be done by us before classes ?这句话的被动语态和疑问句相同诶！