13. Hoa isn’t here so she can’t talk to you. If…………………………………………. 14. Be good or you will be punished. If……………………………………………. 15. I spent 2 days writing the report. It took……………………………………………….. 16. The last time we went out was 2 months ago. We haven’t……………………………………… 17. She doen’t have enough money so she doesn’t buy the house. If………………………………………… 18. If it doesn’t rain, we can go on a trip. Unless…………………………………………… 20. Rita is exhausted because she works too hard.@ If………………………………………

13. If Hoa had been here, she would talk to you

   Cấu trúc: Câu đk số 2:If + S + V2/ Ved, S +would/ Could/ Should…+ V

14. If you don't be good, you will be punished

   Cấu trúc Câu đk số 1: If + S + V(s,es), S + Will/Can/shall…… + V

15. It took me 2 days to write the report 

   Cấu trúc: It (take) + (time) + to + (verb)

16. We haven't gone out with him for 2 month

    Cấu trúc: Thì hiện tại hoàn thành: S + have/ has + VpII

17. If she had enough money, she could buy that book

   Cấu trúc: Câu đk số 2:If + S + V2/ Ved, S +would/ Could/ Should…+ V

18. Unlessit rain, we will go to the cinema this evening 

  Cấu trúc: Unless + S + V (simple present), S + will/can/shall + V (Unless=If not)

20.  If Carol had not been studying, she would have answered the phone

  Cấu trúc: Câu đk số 2: If + S + V2/ Ved, S +would/ Could/ Should…+ V

`13.` If Hoa were here, she could talk to you.

`->` ĐK`2` : If + S + Ved/were + O, S + would/could + V.

`14.` If you aren't good, you will be punished.

`->` ĐK`1` : If + S + V(s/es) + O, S + will + V.

`15.` It took me 2 days to write the report.

`->` It takes + sb + thời gian + to V.

`16.` We haven't gone out for 2 months.

`->` S + hasn't/haven't + P2 + since/for...

`17.` If she had enough money, she would buy the house. 

`->` ĐK`2` : If + S + Ved/were + O, S + would/could + V.

`18.` Unless it rains, we can go on a trip.

`->` ĐK`1` : If + S + V(s/es) + O, S + will + V.

`->` Unless + câu khẳng định `=` If + câu phủ định : Nếu không

`20.` If Rita didn't work too hard, she wouldn't be exhauted.

`->` ĐK`2` : If + S + Ved/were + O, S + would/could + V.