tác giả nào vậy bạn

mk ko biết tên sách đấy ạ

what the hell?

What 

a ) A={ 3564;6531;1248;6570 }

b ) B={ 6570;3564 }

c ) \(B\subset A\)

câu trả lời là tập hợp jj đấy

tập hợp con đấy ạ!

a) A ∩ B;

b) A\B;

c) \(\text{C_E(A ∩ B) = C_EA ∪ C_EB}\)

a) A ∩ B ;

b) A \ B ;

c) C_E(A ∩ B) = C_EA ∪ C_EB

ráng làm nha bn

dài wá tớ đánh cũng mỏi tay lém

XIII

1/ most expensive

2/ fewer

3/ more

4/ longer/ longest

5/ more intelligent

6/ less

7/ more

8/ better

9/ the tallest

10/ bigger

11/ better

12/ the coldest

XIV

1/ show

2/ are going

3/ needs

4/ to buy

5/ will mail

6/ phones

7/ to send

8/ to visit

9/ playing

XV

1/ Ba often plays soccer in the afternoon?

2/ What do you usually do after class?

3/ Nam is never late for school.

4/ My mother is usually tired on Friday evening.

5/ They don't often go swimming in the winter.

6/ My father never drinks coffee.

7/ He don't often go swimming on the weekend.

8/ Where do you usually do on your holiday?

9/ Does she always skip rope at recess?

10/ You can sometimes drink a little coffee.

VI

1/ How far is it does she jog a day?

2/ How far is it from your school to the post office?

3/ How much is the dictionary?

4/ What would you like?

5/ Where is Tim from?

6/ What do you need a phone card for?

7/ What does Mr.Viet do?

8/ What does Lan often do in her free time?

9/ What is your mother doing in the kitchen at the moment?

10/ Which sport does Nam like playing after school?

11/ How often do you go to the movie?

12/ How old will Hoa be on her next birthday?

13/ What's Nam favorite subject?

14/ How much does the shoes cost?

camon nha <3

Số tập hợp viết được là: 12

Số tập hợp viết được là 12 tập hợp.

V. Word form:

Câu 1: Unexpensive

Câu 2: Inventors

Câu 3: Carelessly

Câu 4: Unlucky

Câu 5: Colorful

Tick cho mình nha! Cảm ơn bạn!

VI. Exercise 1:

Câu 1: B

Câu 2: C

Câu 3: A

Câu 4: D

Câu 5: B

Câu 6: A

Câu 7: C

Câu 8: D

Câu 9: C

Câu 10: D

Tick cho mk nha!!!

Tờ đầu nhé bạn :3

1) He speaks English so well that he can travel round the world.

2) She had such a difficult exercise that she couldn't do it.

3) The music was so loud that you could hear it from miles away

4) It was such a beautiful day that we decided to go to the seaside

5) They had such a good time on a farm that they didn't want to come back home