11 If I ate lunch, I won't feel hungry now.

12 unless They don't invite me, I only will come 

13 If he revised all his lesson, he will not failed the exam

14 if you walk5 minutes, you will come the park

15 unless you leave me alone, I will not call the police

16 should  turn on the air, If you arrive  at the office earlier than I do

17If it is snowny , the children won't go to school

19unless you must tell me the whole true, I won't help you

11 money is collected by Jonh

12 the windown was opened by Anna

13our homework has been done .

14 a question will be asked 

15the picture can be cut out

16 the grass was eaten by the sheep

17our rooms isn't cleaned 

18 the car will be not repaired by William

19 is this circle drawn by Sue ?

20  could the dog be fed?

1) Sắt + Khí ôxi →   Sắt(III) ôxit.

4Fe + 3O₂------> 2Fe₂O₃

            (2) Kali + Nước   → Kali hiđrôxit + Khí Hiđrô

K+H₂O ------> KOH +H₂

(3)     Al       +      3Cl        ----->       AlCl₃

            (4)     2KClO₃             ----->       2KCl      +  3O₂

 (5)     Fe₂O₃   +    3H₂SO₄ ----->   Fe₂(SO₄)₃  +     3H₂O

            (6)     2Na        +  2 H₂O     ----->   2 NaOH       +H₂

21. Fish________ on earth for ages and ages. a. existed b. are existing c. exist d. have existed

22. The earth________ on the sun for its heat and light.

a. is depend b. depending c. has depend d. depends

23. On July 20, 1969, Neil Armstrong ________ down onto the moon, the first person ever set foot on another planet.

a. was stepping b. stepped c. has stepped d. was step

24. She will go abroad as soon as she________ this English course.

a. has completed b. will complete c. will have completed d. completed

25. The child________ before the doctor arrived.

a. died b. had died c. has died d. was dying

26. The secretary________ the report by 10:00 yesterday.

a. hasn't finished b. hadn't finished c. didn't finish d. would finish

27. John________ a book when I saw him.

a. is reading b. read c. was reading d. reading

28. Arsenal________ next Monday.

a. wins b. will win c. would win d. is winning

29. She is tired now. She________ for a long time.

a. has been learning b. has learned c. learns d. learned

30. They will have gone home before you________ to meet them.

a. came b. come c. will come d. are coming

31. Now my sister________ a bicycle of her own.

a. is having b. are having c. has d. had

32. This is the first time I ________ here.

a. am b. have been c. was d. be

33. Last week, my professor promised that he________ today.

a. would come b. will come c. comes d. coming

34. My girls friend arrived after I ________ for her about half an hour.

a. was waiting b. had been waiting c. has been waiting d. have waited

35. ________ to rain before you woke up this morning?

a. Did it begin b. has it begun c. Had it begun d. Would it begin

36. My daughter saw an elephant this morning but she________ one before.

a. had never seen b. has never seen c. never seen d. never had seen

37. When we got home, dinner____ so we had a drink first.

a. was preparing b. was being prepared c. was prepared d. had been prepared

38. She was tired. She____ for a long time.

a. has been learning b. had been learning c. leaned d. was learning

39. He said he would visit me, but he____ me yet.

a. has not visited b. had not visited c. is not visiting d. does not visit

40. The weather____ fine so far this week.

a. is b. has been c. was d. had been

could lend

coming

compulsory

II

was meeting-was working

didn't use to be

had

provied

lived

1......but.....

2.......because.......

3........ so that.......

4..........because......

5..........However,........

6..........so........

a. Mary/tall/her brother. 
Mary is taller than her brother.

_______________________________________________

b. A lemon/not sweet/ an orange. 
A lemon isn't sweeter than an orange 

_______________________________________________

c. A donkey/not big/ a horse.

a donkey isn't bigger than a horse.

_______________________________________________

d. This dress/pretty/that one.

this dress is prettier than that one.

_______________________________________________

e. the weather/not cold/ yesterday.

the weather wasn't colder than yesterday 

_______________________________________________

Although Mary was ill, we felt worried

- In spite of her illnesses, Mary felt worried

2. He didn’t come because he was sick.

      - He didn’t come because of his sickness 

3. She didn’t eat much though she was hungry.

      - Despite being hungry, she didn't....

4. The train was late because the fog was thick.

      - Because of  the thick fog, the train was....

5. I accepted the job although the salary was low.

   - In spite of the low salary, I accepted the job

6. The plane couldn’t take off because the weather was bad.

   - Because of  the bad weather, the plane couldn't take off 7. She stayed at home because her mother was sick.

      - Because of being sick, her mother stayed...

8. He didn’t leave school even though his family was poor.

   - Despite his poor family, he didn't.....

9. All the teachers love him because his conduct is good.

   - Because of   His good conduct, all the teacher love him

10. The flight was not delayed though it was foggy.

      - Despite the foggy,....  

11. We couldn’t so swimming because it was snowy.

   - Because of the snowy,....           

12. Even though it was cold, I went swimming.

   - In spite of the cold weather, I went swimming.

13. These students didn’t arrive late although there was the traffic jam.

      - Despite the traffic jam,....

14. Mary can’t sleep because there was the noise.

   - Because of  the noise,...

15. She didn’t get ill though she worked very hard.

      - In spite of  working very hard,.....

16. His wife usually gives him a list because he was absent from the class

   - Because of his absent from the class,....

17. Though he had much experience, he didn’t succeed in repairing the machine.

   - Despite having much experience, he didn't.....

18. Though Kid has failed so often, he has never been disappointed.

      - Despite failing so often, Kid has never...

19. Though I hadn’t eaten anything for 24 hours, I didn’t feel hungry.

   - In spite of  eating anything for 24 hours, I didn't..........

20. He ate all the fruits though they were different.

      - He ate all the fruits, despite their different.

21. He left school because his life was hard.

      - Because of   His hard life,............

22. Although he hadn’t finished the paper, he went to sleep.

      - Despite not finishing the paper,....

.23. He is dismissed because of being late for work often.

      - Because he is late for work often,....

24. Because of driving too fast, he caused a serious  accident.

      - Because he driving too fast,........

25. Although the streets are narrow, many people drive cars in this city.

      - In spite of   the narrow street,...            .......................................................................................................................

26. Because he got up early, he wasn’t late for the first train.

      - Because of getting up early,...          .......................................................................................................................

27. Although he is strong, I’m not afraid of him.

      - In spite of his strong,... 

28. My neighbour couldn’t return home because of losing all of his money.

      - Because my neighbor lost all of his money, he couldn't.....

29. He carried the bed onto the roof of his house because of the hot weather.

      - Because the weather was hot,........

30. I can sleep although it is stormy.

      - In spite of the storm,...

31. I couldn’t do the test because it was difficult.

      - I couldn’t do the test because of it's difficult.

32. He always studies hard though he encounters difficulties.

      - Despite encountering, he always.....

33. Because of not knowing Russian, I’ve had to have the document translated into French.

      - Because I haven't known Russian,...

34. Although there was some noise, they continued to work.

      - In spite of some noise,....

35. Although he’s got an English name, he is in fact German.

      -Despite.being get an E name,.....

36. We bought the house though its rooms were small.

      - We bought the house despite its small rooms.

37. Because there were the obstacles, the building didn’t go along as planed.

      - Because of the obstacles,...

38. Because of not hearing the speaker, I moved to the front row.

      - Because I didn't hear the speaker,....

39) My mother told me to go to school although I was sick.
=> In spite of my sickness,my mother ……
40) Because there was a big storm, I stayed at home.
=> Because of a big storm,I stayed at home.…
41) Tom was admitted to the university although his grades were bad.
 Despite his bad grades,...…………………
42) In spite of his good salary, Tom gave up his job.
=> Although Tom salary was good,he gave...