16.D

17.A

18.B

19.C

20.C

C. surf

City is often (1) described as a large and a highly populated area. (2) However , city life is living in a large populated, technologically advanced area. (3) According to World Health Organization, 54% of the world’s population lived in urban areas by 2014. A city is technologically (4) more advanced and complex than the countryside. Therefore, there are many advantages in living in a city. Technology (5) makes our lives easy in a City.Cities have many facilities like high-quality hospitals, educational institutes, banks, shops (6) and other business institutes. This makes our life easy as we (7) can access the facilities provided by these institutes and organizations without delay. Moreover, many employment opportunities are available in the City as many major business institutes, factories are (8) located here. City life also gives us access to developed infrastructure facilities, like water, electricity, telecommunication and transportation facilities.(9) However , we can also notice a difference in the behavior of the people living in thecity. City dwellers tend to be (10) busier , ambitious and distant compared to the village folk.

II.  Complete each of the following sentences with comparatives or superlatives. Add “the” where necessary.

1.This is( good ).......the best...... food I've ever eaten is this country.

2 Peter's new haircut is (trendy) .....trendier..... than the previous one.

3. The building looks much (nice)......nicer........ in green than the previous .

4. I had to drive my car along (narrow )..narrower.......... road in region.

5.Nam 's house is (far) .....father............from the city centre than my house

6. In my opinion , living in the city is (hard) ....harder......... than living in the country.

7. I think this is (noise) ...the noisiest.......... part of the city .

8. This place was (dangerous)....more dangerous..... than we thought.

9. Could you show me the way to (near) ....nearest........ bus stop ?

10. The trip to Nha Trang City was ( Interesting) .....more interesting.......... for us..

III. Give the correct form of the word in capital.

1, especially

2,natural

3,picturesque

4,attractive

5,popular

6,busiest

7,delightful

8,dynamic

9,flow

10,ideal

The man  whom you sent to the general has reported the victory.

Gọi chiều dài khu vườn là 4a, chiều rộng là 3a.

Diện tích khu vườn là:

3a . 4a = 12a² = 300 m²

=> a² = 300 : 12 = 25

=> a = 5

Chiều dài khu vườn là:

4.a = 4.5 = 20 (m)

Chiều rộng khu vườn là:

3a = 3.5 = 15 (m)

                Đ/S: Chiều dài là 20

                        Chiều rộng là 15.

A