H24
MK CẦN GẤP NHA 1 a. works b. plays c. runs d. chairs 2 a. catches b. buses c.competes d. changes 3 a. organizes b. consumers c. likes d. gives 4 a. thanks b. contacts d. helps d. bags 5 a. best b. names...
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DT
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NH
13 tháng 9 2018 lúc 20:41

Mình có một công thức, bạn tự nhìn mà làm nhé

Cách phát âm s/es

S -> /s/: p, t, k, th, f

Es -> /iz/: ss, x, s, ch, g

S -> /z/: các từ còn lại

 Nhớ k cho mình nhé

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TP
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T1
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KY
14 tháng 12 2021 lúc 17:18

I. Find the word which has a different sound in the part underlined.

1. A. watches B. thanks C. changes D. passes

2. A. finishes B. puns C. buildings D. birds

3. A. catches B. wishes C. plays D. uses

4. A. lives B. cooks C. breathes D. rooms

 

5. A. means B. things C. practices D. fills

 

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DC
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DH
21 tháng 8 2021 lúc 9:51

1 D

2 B

3 C

4 B

5 D

6 D

7 A

8 B

9 C

10 A

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H24
21 tháng 8 2021 lúc 9:53

1D

2B

4B

5D

8B

9C

10A

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NT
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H24
8 tháng 5 2022 lúc 13:52

1C

2D

3B

4C

5ko có đáp án đúng

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CN
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CX
14 tháng 1 2017 lúc 20:22

Bài 1 :

\(a,\left(a-b\right)+\left(c-d\right)-\left(a-c\right)=-\left(b+d\right)\)

Ta có : \(VT=\left(a-b\right)+\left(c-d\right)-\left(a-c\right)\)

                 \(=a-b+c-d-a+c\)

                 \(=-\left(b+d\right)=VP\)

\(\Rightarrow\left(a-b\right)+\left(c-d\right)-\left(a-c\right)=-\left(b+d\right)\)

\(b,\left(a-b\right)-\left(c-d\right)+\left(b+c\right)=a+d\)

Ta có : \(VT=\left(a-b\right)-\left(c-d\right)+\left(b+c\right)\)

                 \(=a-b-c+d+b+c\)

                 \(=a+d=VP\)

\(\Rightarrow\left(a-b\right)-\left(c-d\right)+\left(b+c\right)=a+d\)

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KH
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GL
13 tháng 8 2023 lúc 22:38

1. D

2. B

3. B

4. D

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MS
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GG
31 tháng 10 2017 lúc 12:48

Đặt \(\dfrac{a}{b}=\dfrac{c}{d}=m\Rightarrow a=bm;c=dm\)

Ta có : \(\dfrac{a.b}{c.d}=\dfrac{b.m.b}{d.m.d}=\dfrac{b^2.m}{d^2.m}=\dfrac{b^2}{d^2}\)(1)

\(\dfrac{\left(a+b\right)^2}{\left(c+d\right)^2}=\dfrac{\left(bm+b\right)^2}{\left(dm+d\right)^2}=\dfrac{\left[b.\left(m+1\right)\right]^2}{\left[d.\left(m+1\right)\right]^2}=\dfrac{b^2.\left(m+1\right)^2}{d^2.\left(m+1\right)^2}=\dfrac{b^2}{d^2}\)(2)

Từ (1) và (2) suy ra :\(\dfrac{a.b}{c.d}=\dfrac{\left(a+b\right)^2}{\left(c+d\right)^2}\)

Vậy \(\dfrac{a.b}{c.d}=\dfrac{\left(a+b\right)^2}{\left(c+d\right)^2}\) khi \(\dfrac{a}{b}=\dfrac{c}{d}\)

Đc chưa bạn . Tick cho mk nha!

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NH
Xem chi tiết
DH
21 tháng 7 2021 lúc 21:08

B. USE OF ENGLISH:

Indentify the word whose underlined part is pronounced differently from that of the others.

1 A. laughs. B works. C stops. D plays.

2 A. flood. B school. C. soon. D moon.

Find the worlds which has a different stress pattern

3. A wonder. B.jungle C. canoe. D valley.

4. A magnificent. B competition. C requirement. D emergency

Choose the best answer to complete the following sentences.

5. Our parents..... for her since yesterday.

A. has waited

B. have waited

C. waited

D. were waited

6. When I called, they.... ... dinner

A. had

B. are having

C. was having

D. were having

7. Would you mind....... the windows?

A. close

B. closing

C. to close

D. If I close

8. Presents......... in colored paper and put under Christmas tree.

A. are wrapped B. wrapped C. wrap

D. was wrapped

9. The man ........... to the principal is my new teacher.

A. talks

B. is talked

C. talking

D. is talking

10. He took part in a.......festival last week.

A. cooking- riceB. cook- ricing C. rice-cook

D. rice-cooking

C. READING:

I. Read the following passage, then choose the best option (A, B, C or D) to complete it.

COMPOST

Compost is a wonderful natural resource that helps plants grow well. Today I am going to tell you (1)........to start compost heap. First of all, we must use only household and garden matter including tea leaves and egg shells, but we must(2) .........them first. Don't use any meat or grain products because this attracts rats. Find a place (3)........... your garden that gets a few hours of sunlight each day. The (4)........... also needs moisture, but it will get this from condensation. Cover the heap with a sheet of strong plastic if the weather is wet. Keep adding to the pile and after six months your compost can be (5) .........for your fields and gardens.

1. A. how

B. what C. where

D. why

2. A. washing B. to wash

C. wash D. washed

3. A. on

B. at

C. for

D. in

4. A. compost B. glass C. bottles

D. cans

5. A. use

B. used C. using

D. to use

II. Read the paragraph, then decide whether the following sentences are True (T) or False (F).

Tet or Lunar New Year holiday is the most important celebration for Vietnamese people. Tet is a festival which occurs in late

January or early February. Before Tet. people usually clean and decorate their homes. They go to the market to buy candy.

jams or dried watermelon seeds. They also get new clothes which are worn at Tet. They often buy peach blossoms and

marigolds which are traditional flowers on Tet holiday. Tel is a time for family members to gather and have some special

meals with special food such as sticky rice cakes. People often visit relatives and close friends on the second day of the

holiday

1.Tet is the most important celebration in Vietnam T

2. Tet occurs in early January F

3.People don't clean and decorate their homes before Tet. F

4.People often visit relatives and close friends on the first day of New Year. T

5. Vietnamese people wear new clothes at Tet. T

D. WRITING -

1. Finish the second sentence in such a way that it is similar to the original one.

1. "I am cleaning my room now.'" said Hoa.

→ Hoa said......she was cleaning her room then

2. Learning English is very interesting.

→ It is very interesting ......to learn E

3. Can I borrow your pen?

→ Would you mind If.......borrowed your pen....?

4. Lan bought a new dictionary yesterday.

→ A new dictionary was bought by lan yesterday

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YM
Xem chi tiết
CL
22 tháng 12 2022 lúc 13:02

Em đưa cả ngữ liệu và đề bài đầy đủ lên đây để thầy cô và các bạn trong cộng đồng có thể hỗ trợ nhé!

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