20 A

24. D => weren't

1. tired

2. matter

3. fever

4. take

5. out

was repoted :v?

thước ê ke :)

\(x=\dfrac{12\cdot\left(-5\right)}{20}=-3\)

the longest

1^st : littering, crime, density, slavery, megacity, criminal, gather, homeless, stressful, problem, millionaire, hunger.
2^nd : resource, electricity, affect, explotion, economic, pollution, behind, service, recycle, solution, attract, disease, describe, renewable, product, effect.
3^rd : population, populated.

4,

1. Where did you go last week?

2. I live in a small village in Ha Nam.

3. I went to Phu Quoc Island.

4. Life in my hometown is quiet and peaceful.

5. What do you think of it?

6. The villagers are kind and friendly.

7. It's more beautiful than I exceptect.

8. Ha Noi is busy and noisy.

9. I'll go to Phu Quoc Is land next year.

10. Ha Noi is more crowded than Ha Nam.

5,

1. a

2. b

3. b

4. a

5. a

1 most famous

2 beautiful

3 is eating

4 will visit

Dear Sally 

We are having a wonderful time (1).............. the USA. The (2)................. are friendly and the (3)............... has been warm and sunny. In San Francico, I (4)................. my friends, Sandra smith and (5).................. family. It was(6) .................. to see them.  I (7)................. lots of souvenirs (8) .................the children. Thanh is always complaining about the (9)............. of my suitcase.

See you (10)..................

Love,

Quyen

1. a/ of  b/on  c/in  d/at

2. a/boy  b/student  c/friend  d/people

3. a/ picture  b/weather  c/people  d/summer

4. a/ visiting  b/visited  c/to visit d/visits

5. a/her  b/them  c/him  d/you

6. a/loving  b/lovely  c/love d/to love

7. a/is bought  b/to buy  c/bought d/has bought

8. a/between  b/on  c/to  d/for

9. a/ heaviness  b/heavily  c/heavy  d/heavier

10. a/on   b/last   c/soon  d/so