`1` . Vietnam is the country which grows the most rice.

`->` Which làm đại từ quan hệ trong câu thay cho "Vietnam"

`2` . She is tired of finishing on time.

`->` Tired of doing sth :mệt mỏi làm việc gì

`3` . Were I know she was sick , I would visit her

`->` Đảo ngữ của câu điều kiện loại 2

`4` . Although Tom was unable to see anything , he knew someone was in his room.

`->` Although + Clause , Clause : mặc dù

`1`. Vietnam grows the most rice

-> Vietnam is the country which grows the most rice.

`2`. She is unable to finish on time and she is tired of that.

-> She is tired of finishing on time.

tired of Ving: mệt mỏi phải làm gì

`3`. i don't know she was sick so i don't visit her

-> Were I to know she was sick, I would visit her. 

Đảo ngữ câu điều kiện loại 2 => đặt ra giả thiết ngược với hiện tại.

Nếu trong câu không có động từ “were” thì mượn “were’ và dùng “ to V”

`4`. Despite being unable to see anything , he knew some one was in his room

-> Although Tom was unable to see anything , he knew some one was in his room.

Although + S + V + O = Despite/In spite of + Ving/N