\(\dfrac{2}{7}\cdot\dfrac{14}{15}\cdot\dfrac{5}{6}:\dfrac{3}{8}:\dfrac{2020}{2021}\)

\(=\dfrac{2}{7}\cdot\dfrac{14}{15}\cdot\dfrac{5}{6}\cdot\dfrac{8}{3}\cdot\dfrac{2021}{2020}\)

\(=\dfrac{14}{7}\cdot\dfrac{5}{15}\cdot\dfrac{8}{6}\cdot\dfrac{2}{3}\cdot\dfrac{2021}{2020}\)

\(=2\cdot\dfrac{1}{3}\cdot\dfrac{4}{3}\cdot\dfrac{2}{3}\cdot\dfrac{2021}{2020}\)

\(=\dfrac{8084}{13635}\)

1 healthily

2 important

3 treatment

4 disappear

5 safely 

6 beautiful

8 careful

9 toothache

10 slowly

11 tasty

12 emotional

13 healthy

1. healthily
2. important
3. treatments
4. disappear
5. safely
6. beautiful
8. careful
9. toothache
10. slowly
11. tasty
12. emotional
13. healthy

healthily

important 

treatments

disappear

safely

beautiful

careful

toothache

slowly

tasty

emotional

healthy

1 more expensive than

2 faster than

3 more modern than

4 hotter than

5 more beautiful than

6 cheaper than

7 better than

8 more convenient than

V

1 the longest

2 the most interesting

3 the biggest

4 the best

5 the most beautiful

6 the coldest

7 the fastest

8 the most important

III

1 height

2 smallest

3 youngest

4 more quiet

5 best

6 take - is raining

7 colder

IX

1 careful

2 activity

3 ninth

4 physical 

5 better

6 interesting

7 employees

8 twentieth

9 teachers

10 once

III

1 height 

2 healthy

3 long

4 sickness

5 unpleasant

6 appointment

VII

1 biggest

2 warmer - hottest

3 best

4 longest

5 noisier

VIII

1 taller

2 better

3 more expensive

4 faster

5 heavier

6 thinner

7 slower

8 cleverere

9 older

10 cheaper

11 taller

12 easier

Kate: Hello, I (1) ____am____ Kate Logan.

Mike: My (2) ___name is____ Mike Green.

Kate: Are you (3) ____my____ new student?

Mike: (4) ___Yes_____, I am.

Kate: This is (5) _____my________ friend, Bill Hay.

Mike: Hello, Bill. Are (6) ____you_____ also a student here?

Bill: No, I'm not. I'm (7) ____in_____ New Asia School.

Mike: Is it a good school?

Bill: Yes, it isn't (8) ___a bad school._____.

Mike: (9) __Who_____ is that over there, Kate?

Kate: It's (10) ____That is my___ new teacher.

V.Choose the word(a,b,c,or d)that best fits each of the blank spaces.

Kate: Hello, I (1) ___am_____ Kate Logan.

Mike: My (2) ___name is____ Mike Green.

Kate: Are you (3) ___a_____ new student?

Mike: (4) ____yes____, I am.

Kate: This is (5) ____my_________ friend, Bill Hay.

Mike: Hello, Bill. Are (6) __you_______ also a student here?

Bill: No, I'm not. I'm (7) _____at____ New Asia School.

Mike: Is it a good school?

Bill: Yes, it isn't (8) __bad______.

Mike: (9) ____who___ is that over there, Kate?

Kate: It's (10) ___my____ new teacher.

1 A

2 Sai đề

3 A

4 D

5 D

6 A

7 B

8 B

9 D

10 D

11 D

12 C

13 B

14 D

15 C

16 D

17 A

18 C

19 B

20 B

1. A

3. A

4. D

5. D

6. A

7. B

8. B

A

b

67.Mike enjoys carving eggshells.mike là người thích cham khắc vỏ trứng

A. Mike ‘s hobby is carving eggshells.

B. Mike ‘s hobby  are  carving eggshells.

C. Mike ‘s hobby is  carve eggshells.sở thích của mike là chạm khắc vỏ trứng

D. Mike hobby is carving eggshells.

Nhôm nở vì nhiệt ít nhất vì nhôm là chất rắn.

Trong các chất không khí, nước, nhôm, chất nào nở vì nhiệt ít nhất?

-Nhôm

Vì sao?

Chất khí nở vì nhiệt nhiều hơn chất lỏng, chất lỏng nở vì nhiệt nhiều hơn chất rắn. Mà nhôm là chất rắn.

Nhôm nở vì nhiệt ít nhất vì: không khí (chất khí) nở vì nhiệt nhiều hơn nước (chất lỏng), nước lại nở vì nhiệt nhiều hơn nhôm (chất rắn).

(P/s: Hơi rối và khó hiểu chút xíu, bạn cố gắng lên nha hihi :>>>)

Chúc bạn học tốt!! ^^