句型转换 急用.1.The flight was late becauae the weather was very b

1.The flight was late becauae the weather was very bad.（同义句）
= The flight was late because of the very bad weather.
2.They have decorated our school hall already.（被动语态）
= Our school hall has already been decorated by them.
3.My father hasn't told me to send the letter.（被动语态）
= I haven't been told to send the letter by my father.
4.The school should allow students to do sports at least one hour a day.（被动语态）
= Students should be allowed to do sports at least one hour a day by the school.
5.We must build more roads in the country.（被动语态）
= More roads must be built in the country by us.
6.The new type of phone can be produced by the workers in this factory.（主动语态）
= The workers can produce the new types of phone in this factory.
8.Has the recorder been mended by his brother yet?（主动语态）
= Has his brother mended the recorder yet?
9.can,how,the,information,21st century,be,in,got（连词成句）
= How can information be got in the 21st century?