change the following sentences into the opposite voice

[Trịnh Thư]

[TẶNG BẠN] TRỌN BỘ Bí kíp học tốt 08 môn
Chắc suất Đại học top - Giữ chỗ ngay!!

ĐĂNG BÀI NGAY để cùng trao đổi với các thành viên siêu nhiệt tình & dễ thương trên diễn đàn.

1. The facsimile was invented by Alexander Bain in 1843.
=>
2. The cacao beans are cleaned before they are cooked.
=>
3. Who invented the ballpoint pen ?
=>
4. Why don"t you put the meat in the microwave to defrost it?
=>
5. The wood pulp is often cleaned and chemically whitened .
=>
6. He was asked to design it by the goverment.
=>

 

[realjacker07]

1. The facsimile was invented by Alexander Bain in 1843.
[TEX]\rightarrow[/TEX] Alexander Bain invented fax in 1843
2. The cacao beans are cleaned before they are cooked.
[TEX]\rightarrow[/TEX] We clean the cacao beans before cooking them / we cook them.
3. Who invented the ballpoint pen?
[TEX]\rightarrow[/TEX] The ballpoint pen was invented by who?
4. Why don"t you put the meat in the microwave to defrost it?
[TEX]\rightarrow[/TEX] Why wasn't the meat put in the microwave (for it to defrost)?
5. The wood pulp is often cleaned and chemically whitened .
[TEX]\rightarrow[/TEX] We often clean and chemically whiten the wood pulp.
6. He was asked to design it by the goverment.
[TEX]\rightarrow[/TEX] The government asked him to design it.

 

[tuananh982]

3. Who invented the ballpoint pen?
→→\rightarrow The ballpoint pen was invented by who?

3. Who invented the ballpoint pen?
=> By whom was the ballpoint pen invented?

 

[realjacker07]

3. Who invented the ballpoint pen?
=> By whom was the ballpoint pen invented?

Mình nghĩ câu của mình cũng có sai về ngữ pháp đâu nhỉ, chỉ có không hay bằng của bạn thôi :v