Ex3: Mark the letter A, B, C or D to indicate the underlined part that needs correction.
1.C
2.C (so)
3.A (has such many things => so many things)
4.A (the lakes are => are the lakes)
5.D (be => to be)
6. Xem lại đề nhé
7.A (such enjoyvable => such an enjoyvable)

Rewrite the sentences

59. The exam was so difficult that I couldn't finish it     

→ It was such a difficult exam that I couldn't finish it.

60. The map is so old that I can't read it     

→ It is such an old map that I can't read it.

61. It was such a dry bread that my grandmother couldn't cut

→ The bread was too dry for my grandmother to cut.

62. They are such interesting books that people can't put them down

→ These books are so interesting that people can't put them down.

63. This office is too small for 10 people to work in

→ It is such  a small office for 10 people to work in.

64. The book is too boring for us to read 

→ The books isn't  interesting enough for us to read.

65. He is very ill. He can't eat anything

→ He is so ill that he can't eat anything.

Rewrite the sentences
19. Neil Armstrong was the first man who walked on the moon
20. I come from a city that is located in the southern part of the country
21. The children who attend that school receive a good education
22. The scientists who are researching the causes of cancer are making progress
23. We have an apartment which overlooks the park
24. Yuri Gagarin became the first man who flied into space
25. We stood on the bridge which connects the two halves of the building
26. The vegetables which are sold in this supermarket are grown without chemicals
27. Do you know the woman who is coming toward us ?

Combine two sentences by using relative pronoun
4. The children were playing football in the schoolyard. They were my students
5. A girl answered the phone. She told me "You were out"
6. The chair was broken two days ago. The chair has now beed repaired
7. I saw some people. Their car had broken down
8. I recently went back to my hometown. I was born there
9. Some buildings were hit by bombs. They are still burning
10. Some people want to smoke. They have to leave the the building
11. The doctor was very thorough. Ingrid went to see him
12. A scientist discovered the neutron. He was James Chadwick 

Give the correct form of verbs
5. Do something! Don't just sit there _____ (twiddle) your thumbs
6. Last year I studied abroad. I appreciate _____ (have) the opportunity to live and study in a foreign country
7. _____ (look) down from from the hill, the town spread out before us towards the coast
8. Marta doesn't like to have her picture _____ (take). She advoids _____ (photograph)
9. I don't agree with _____ (smack) children if they do something wrong
10. The book _____ (publish) last week is his first novel
11. _____ (photocopy) all the papers, Sarah put them back in the file
12. I found a coin _____ (lie) on the sidewalk
14. Life must be unpleasant for people _____ (live) near busy airports
15. _____ (park) the car about a kilometre from the stadium, I walked the rest of the way
16. That's such an _____ (amuse) story that I can't put it down
17. _____ (take) the umbrella with him, he went out in the heavy rain
18. It was one of my most _____ (embarrass) experiences in my life

Rewrite the sentences below using a Past Partciple Phrase or Being + Past Participle
4. Since I was promoted, I've had no time to go out  => __________
5. After he was released from prison, Andy couldn't find a job anywhere
=> __________
6. The committee meetings, which where always dominated by the same people , were slow-moving and ineffectual
=> __________
7. When he was caught, he confessed everything => __________
8. When it is seen from the outside, the building looks a mess, but it is lovely inside => __________
9. If we are elected, we will increase the value of pensions => __________
10. Although he was ridiculed by everybody, he continued to persuit his bizarre projects => __________
11. Jennifer had been sholifting for many years before she was found out
=> After __________

Rewrite the sentences beginning with an appropriate participle (present, past of perfect)
15. Because she didn't know where the theater was, she asked for directions at the hotel reception
=> ____________________
16. As she was a nurse, she knew what to do after the accident
=> ____________________
18. The fruit was expensive because it was imported 
=> ____________________
19. Because we had spent nearly all our money we couldn't afford to stay at a hotel
=> ____________________
20. As we didn't want to offend him, we said nothing about his paintings
=> ____________________
21. Although it has been hunted close to extinction, the rihno is once again common in this area
=> ____________________

a, 3885 : (X x 21) = 37
=> 21X = 3885/37
=> 21X = 105
=> X = 5
b, 50343 : X = 405 (dư 123)
=> X = 50343 : 405 + 123
=> X = 33386/135