GIẢI THÍCH VÀ CÁCH LÀM:

Dùng khi danh từ đứng trước có các từ bổ nghĩa như :ONLY,LAST,số thứ tự như: FIRST,SECOND…
He is the last man who left the ship = He is the last man to leave the ship.

-Động từ là HAVE/HAD
He had something that he could/ had to do = He had something to do 

-Đầu câu có HERE (BE),THERE (BE)
There are six letters which have to be written today.
There are six letters to be written today.
GHI NHỚ :
Trong phần to inf này bạn cần nhớ 2 điều sau:
- Nếu chủ ngữ 2 mệnh đề khác nhau thì thêm cụm for sb trước to inf.
We have some picture books that children can read.
We have some picture books for children to read.
Tuy nhiên nếu chủ ngữ đó là đại từ có nghĩa chung chung như we,you,everyone…. thì có thể không cần ghi ra.
Studying abroad is the wonderful thing that we must think about.
Studying abroad is the wonderful (for us ) to think about.
- Nếu trước relative pronoun có giới từ thì phải đem xuống cuối câu. ( đây là lỗi dễ sai nhất).
We have a peg on which we can hang our coat.
We have a peg to hang our coat on.

KẾT QUẢ

1. Katherine was the first French woman to fly a plane

2. the only student to pass the exam was Helen

3.  The first guest to arrive at our house was George Benson

4. The best thing to do is to call the police

5. the first ship to land in New Zealand won the race

6. This was the last of colonies to become independent

7. Melissa will be the last girl to take the exam

8.  I have a lot of dirty clothes to wash

9. Jackson is the only person to trust

10. Could you give me a book for me to read on the plane