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25 tháng 7 2023

You should get up early every day.

Can she look after herself when her mother is away?

Both of us playing baseball.

Why don't we eat out tonight?

Lan can’t swim as well as Han.

Neither my father nor my mother drink tea.

Both my father and my mother don't drink tea.

What about visiting the museum this afternoon?

Could you show me how to get to the station?

We went to Liverpool by train last Sunday.

You won’t need to go to the meeting next week.

Sonia isn't interested in roller-skating.

You had to rike the bike more carefully next time.

I prefer listening to music to going to the circus.

The rain prevented us from going to school.

25 tháng 7 2023

We enjoy visiting museums when we have leisure time.

Jenny dislikes reading poetry boring.

Her new house is smaller than her old house.

Peter is the tallest student in my class.

The white dress is cheaper than the black one.

In spite of the weather being bad, it did not delay the traffic.

If you don't work hard, you will fail the exam.

It takes me two hours to get to Hai Phong by train.

What is the height of that building?

The water was very cold, so the children couldn't go swimming.

Don't forget to wake me up at eight tomorrow morning.

I am interested in going to the cinema with my friends at weekends.

Ann is a dangerous driver.

You don't have to finish all your work today.

How much do these rackets cost?

What is wrong with your car?

My mother is a very good cook.

26 tháng 10 2023

81 existence

82 athletes

83 athletic

84 athletics

85 athletic

86 equipped

87 varieties

88 Variety 

89 variously

90 enthusiastically

91 It is the most impressive toy museum I have been to

92 I last went to the cinema 2 months ago

93 I am not used to staying up late

94 How long has John studied Spanish?

95 This is the first time they have ridden a horse

96 I have never looked up to a scientist so much

97 My sister and I are used to decorating the house at Xmas

98 While we were doing our test, the principal visited our class

99 John has been playing his game of tennis for 4 hours

26 tháng 10 2023

100 My parents used to live in the USA when they were young

101 I am not used to getting up early

102 My mother doesn't get used to using a computer

103 Mr Michael used to grow tulips 

104 John isn't used to the cold weather

105 We haven't called each other for 2 weeks

106 How long have you had this car?

107 When did Kate last talk to her boss?

108 My parents have drunk since it started to rain

109 After facing the matter, she decided to go away

110 Before going out for a walk, Hoa learned her lesson

111 C

112 D

113 D

114 D

115 A

116 C

117 A

11 tháng 10 2016

EX3: 1 VÀ 5 .Help them have a have a good meal.

2.Help people to find the correct bus, train and get to the place they want to go to.

3. Help them not be cold in the winter, not have a flu.

4. Help them have the good knowledge to get a good job and life.

EX4: 

      I used to tutoring children from poor familles in HCMC. I would like to try “Volunteering to gi ve information in bus station and railway stations, offering coupons for free chicken noodle soup for the poor, giving away warm clothes to homeless people and offering meal at 5,000 VND for the poor”. I want to do because I want to help the poor people.

 

 



 

22 tháng 1 2022

- Chắc là gọi thầy Nguyễn Việt Lâm thôi :)

NV
22 tháng 1 2022

1.

\(2n+1\) luôn lẻ \(\Rightarrow2n+1=\left(2a+1\right)^2=4a^2+4a+1\Rightarrow n=2a\left(a+1\right)\)

\(\Rightarrow n\) chẵn \(\Rightarrow n+1\) lẻ \(\Rightarrow\) là số chính phương lẻ

\(\Rightarrow n+1=\left(2b+1\right)^2=4b^2+4b+1\)

\(\Rightarrow n=4b\left(b+1\right)\)

Mà \(b\left(b+1\right)\) là tích 2 số tự nhiên liên tiếp \(\Rightarrow\) luôn chẵn

\(\Rightarrow4b\left(b+1\right)⋮8\Rightarrow n⋮8\)

Mặt khác số chính phương chia 3 chỉ có các số dư 0 và 1

Mà \(\left(n+1\right)+\left(2n+1\right)=3n+2\) chia 3 dư 2

\(\Rightarrow n+1\) và \(2n+1\) đều chia 3 dư 1

\(\Rightarrow n⋮3\)

\(\Rightarrow n⋮24\) do 3 và 8 nguyên tố cùng nhau

14 tháng 12 2021

didn't know how to play chess, so he asked his father.

Do I have to tip in a coffee shop?

should not sweep the house on the first day of tet.

Diet and exercise will help you lose weight. Moreover, it is good for your health.

 

1 tháng 7 2021

1 A

2 B

3 D

4 B

5 A

6 C

7 A

8 B

9 A

10 C

11 C

12 B

13 D

14 D

15 D

16 C

17 B

18 A

19 C

20 A

21 D

22 B

23 C

24 C

25 B

26 C

27 A

28 C

29 A

30 B

31 B

32 D

33 C

34 A

35 B

36 D

37 C

38 C

39 B

40 D

41 B

42 C

43 D

44 A

45 B

46 C

47 A

48 D

49 B

50 B 

15 tháng 4 2022

ối dồi ôi lớp mik á đi đến lớp cởi mẹ khẩu treng re , re chơi cũng ăn quà vặt cớ phải gọi là trả re lề nếp j  , à thì kể thế thoi :.

15 tháng 4 2022

=((( 

1 tháng 12 2021

Em chụp rộng ra , đề bài thiếu

1 tháng 12 2021

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