一、将下列句子改为被动语态.①Can we use wood to make paper?

一、将下列句子改为被动语态.
①Can we use wood to make paper?
Can wood be used to make paper by us?
②When will you complete another bridge over the river?
When will another bridge over the river be completed by you?
③Do you have to do some extra work this weekend?
Does some extra work have to be done by you this weekend?
④How often do the villagers hold a meeting under the tree?
How often is a meeting held under the tree by the villagers?

can the wood be used to make paper by us...