(d1): y = -2x - 2

(d2): y = 2x + 4

a) Vẽ d1 và d2

b) Tìm tọa độ giao điểm (d1) và (d2)

Change the following sentences into passive voice

1. Mary didn’t do her homework, did she?

2. For a long time, people believe that the earth is flat

3. His mother says he will come back

4. Is he waiting for her?

5. Who wrote “Gone With The Wind” ?

6. Who is opening the doors?

7. My brothers found the keys, didn’t he?

8. You saw the cat, didn’t you?

9. He told me that my dog was in his house

10. The girl who gave you this present is very beautiful.

11. He suggested allowing council tenants to buy their house.

12. We can not change the articles which customers have bought during the sale

Complete the sentences with the given words, active or passive:

1. Smith (teach) ......... at the University of Washington since 1999

2. Not much (say) ........ about that matter since that time

3. That event (occur) ....... shortly after the meeting last week

4. Less than half of the cans of paint (use) ......... so far

5. At this time, much attention (devote) ......... to that problem

6. That old red house (build) ......... in the year 1822

7. The report (examine, not) ........... by the committee of experts yet

8. Cocktails (serve) ....... to the guests about 10 minutes from now

9. A second coat of paint (spread) ........ over that surface tomorrow

10. Everything (go) ....... well so far. there (be) ....... no trouble yet

11. Listen to this. I think this news (surprise) .......... you

12. The noise from the trains (annoy) ......... me terribly last night

13. Chris has good news. The engineering firm where she had an interview yesterday (May + offer) ............ her a job soon.

14. Good news! I (May + offer) ........ a job soon. I had an interview at an engineering firm yesterday

15. You (should+open) ........... the wine about three hours before you use it

16. You (mustn’t + move) ............ this man, he is too ill. He (will +have to + leave) ........... here.

17. You (must +take) .......... those books back to the library yesterday.

18. We tried, but the window (couldn’t + open) .........

19. You (must +keep) .......... meat in a refrigerator or it will spoil.

20. I (had better + wash) ....... my clothes today, or they will be very smelly

21. Someone (should + tell) ....... James the news immediately

22. This application ( be supported to + send) .......... to the personnel department soon

Complete the following sentences with could/should/ shouldn’t/must/couldn’t + have + pp or should/must + infinitive

1. Bill and Sue go away on holiday very often, so they .......... short of money (be)

2. Don passed the exam without studying for it. The exam ...... very difficult (be)

3. She knew everything about our plans. she ......... to our conversation (listen)