3. So far I have been writing five pages of the letter.

4. I haven't made decision to continue my study in a foreign country.

5. It was too fool for him to say that.  ( it + tobe +too adj + for sb to V)

6. The car was too expensive for him to buy. ( S + tobe+too adj+ for sb to V)

7. Such was Fiona's dissapointment that she could not keep on working. ( Đảo ngữ với such)

8. He was made to wait for 2 hours.

9. Had it not been Laura's report, I  wouldn't not been able to finish the project. ( Đảo ngữ câu Đk loại 3)

10.  Had it not been for his support, I wouldn’t have been able to finish the project.

It was only when he came into the room that I recognized him.