Tim loi sai trong cac cau sau va sua lai cho dung

1. She isn't->doesn't have classes on Saturday and Sunday

2. Her sister is at school at 7 o'clock to 11 o'clock(câu này cứ sao sao í)

3. Do->does your brother play sports every day ?

4. Hung gets up and brush->brushes his teeth in the morning

5. Trung's classroom is in->on the second floor

Tim loi sai trong cac cau sau va sua lai cho dung

1. She isn't => doesn't have classes on Saturday => Saturdays and Sunday => Sundays

2. Her sister is at school at => from 7 o'clock to 11 o'clock

3. Do => Does your brother play sports every day ?

4. Hung gets up and brush => brushes his teeth in the morning

5. Trung's classroom is in => on the second floor

#Yiin

1. He=> His mother is a doctor

2. Is your big school => school big?

3. Do-> Are you in class 6C ?

4. What time do you gets-> get up every day

5. Lan go-> goes to at 6.30 every morning.

6. What time do they do-> have their dinner ?

1. He⇒ His

2. big school⇒ school big

3. Do⇒ Are

4. gets⇒ get

5. go⇒ goes

6. do⇒ have

1. He mother is a doctor

-->His mother is a doctor

2. Is your big school ?

-->Is your school big ?

3. Do you in class 6C ?

-->Are you in class 6C ?

4. What time do you gets up every day?

-->What time do you get up every day?

5. Lan go to at 6.30 every morning.

-->Lan goes to at 6.30 every morning.

6. What time do they do their dinner ?

-->What time do they do their dinners ?

1 Ba doesn't get up at six o'clock every morning.

2 How many classrooms are there in his school?

3 How do you spell this word, Minh?

4 Stand up and open your book.

5 I am twenty-one years old and i'm a student

7 Is your house opposite the stadium?

8 There is a museum to the right of the house

9 In the neighborhood, there is a hospital and a factory.

10 Our class is on the third floor.

11 Nhung's house has six rooms

12 What time does your brother get up ?

Còn câu 6 mình thấy đúng mà!

Bài 1: Đặt câu hỏi cho phần gạch chân

1.There is one boy in our class

-> How many boys are there in your class ?

2.That is our teaher

-> Who is that ?

3.These are pencils

-> What are these ?

4.Mr.quang lives in the country

-> Where does Mr. Quang live ?

Bài 2: Tìm lỗi sai và sửa lại

1.Our class is on the three floor

-> Our class is on the third floor

2.Nhung's house have six rooms

-> Nhung's house has six rooms

3.What time your brother gets up?

-> What time does your brother get up?

4.How many teachers there are in your school?

-> How many teachers are there in your school?

5.He brush his teeth at six forty-five

-> He brushes his teeth at six forty-five

đúng 12

sai 8 câu

**** cho mình nha Hằng

cậu vào câu hỏi tương tự nhé nhớ **** cho mình nhé

dung 12 cau

sai 8 cau

Tim loi sai trong cac cau sau va sua lai cho dung

1. It's half to->past six

2. Lan and Mai is->are very beautiful

3. There is a pen and five books->are five books and a pen in his schoolbag

4. This is a city big->big city

5. What she do->does she do after school ?

6. Mr. Tam teach->teaches us English

7. My classroom is at->on the fifth floor

8. He listen on->listens to music every day

1. It's half to six. (to ⇒ past)

2. Lan and Mai is very beautiful. (is ⇒ are)

3. There is a pen and five books in his schoolbag. (?)

4. This is a city big. (city big ⇒ big city)

5. What she do after school? (she ⇒ does she)

6. Mr. Tam teach us English. (teach ⇒ teaches)

7. My classroom is at the fifth floor. (at ⇒ on)

8. He listen on music every day. (listen ⇒ listens)

Gọi a là số câu đúng, khi đó số câu sai là : \(20-a\)

Vậy, ta có : \(10.a-15.\left(20-a\right)=50\)

\(10.a-300+15.a=50\)

\(25.a=300+50=350\)

\(a=350:25=14\)

Nên \(b=20-14=6\)

Đáp số : số câu đúng : 14, số câu sai : 6

b) 

Lần 1 : Đong đầy nước vào bình 7 lít, rồi đổ sang bình 5 lít

Lần 2 : Bình 7 lít còn 2 lít. Đổ nước trong bình 5 lít ra và đổ 2 lít ở bình 7 lít sang bình 5 lít. Vậy bình 5 lít đang chứa 2 lít

Lần 3 : Đong đầy nước vào bình 7 lít, rồi đổ sang bình 5 lít ( khi đó bình 5 lít đang chứa 2 lít . Vậy chỉ đổ sang bình 5 lít chỉ 3 lít

Số lít cần đầy là : \(7-3=4\) lít ( ở bình 7 lít )

GỌI X LÀ SỐ CÂU TRẢ LỜI ĐÚNG , Y LÀ CÂU TRẢ LỜI SAI

X       +        Y      =    50

10xX   -   15xY    =    50

10xX    +   10xY =  500

10xX   -    15xY    = 50 

                 25 x Y = 450

                         Y = 450:25

                         Y  = 18

        X  +  18  = 50

        X            = 50-18

        X            = 32

ĐÁP SỐ : 32 CÂU TRẢ LỜI ĐÚNG 

                 18 CÂU TRẢ LỜI SAI

Goi so cau dung la a , so cau sai va so cau ko lam la b 

So diem cua Thang duoc tinh theo cong thuc la :

  5 . a - 5 . b = 25 ( diem )

Co 5a - 5b = 5 . 5

      5( a - b  ) = 5 . 5

=> a - b = 5

Co a + b = 15 

=> a = 5 + b

     a = 15 - b

=> 5  + b = 15 - b

=> b + b = 15 - 5

=> 2b = 10

=> b = 5

=> a + b = 15

=> a = 10

Vay Thang lam dung 10 cau 

Là 10 câu!

là 10 câu! Không đung thì in lôi vì đa ko giup đuoc cau này!