1.How many teachers are there in your school?

2.Mary and Jane are students at school.

3.His school is small it in a big city.

4.How many classrooms are there in Phong's room?

5.My school has four floors and my classroom is on the second floor.

K cho mình nha bạn ^^

Hãy sử dụng những từ gợi ý cho sẵn để viết thành câu hoàn chỉnh.

1. How/ many/ teachers / there / school /? /

=) How many teacher are there in your school?

2. Mary/ Jane/ students/ school.

=) Mary and Jane are students in a school

3. His/ school/ small/ it/ big/ city.

=) His school is small. It's in a big city

4. How/ classrooms/ there/ Phong’s/ school/?/

=) How many classrooms are there in Phong's school?

5. My/ school/ four/ floors/ my/ classroom/ second/ floor/./

=) My school has four floors. My classroom is on the second floor

A. nha  

#qwerty

.

.

Bạn tham khảo nha !

1. B. cook                       

2. A. waỵ                           

3. c. remember

4. B. them

5. D. kind                              

6. C. happily

7. B. took away

8. B. hardly                    

9. A. Never mind       

10. D. eat

= 16 nha bạn T_T

= -1 nha

135/42

850:100.23.4=198.9

= 198,9

k đúng nha 

ai cần điểm hỏi đáp mình k cho

D spain nhé chúc học tốt

\(A=\frac{1}{1+2}+\frac{1}{1+2+3}+\frac{1}{1+2+3+4}+...+\frac{1}{1+2+3+4+...+2021}\)

\(A=\frac{1}{\frac{2\times3}{2}}+\frac{1}{\frac{3\times4}{2}}+\frac{1}{\frac{4\times5}{2}}+...+\frac{1}{\frac{2021\times2022}{2}}\)

\(A=2\times\left(\frac{1}{2\times3}+\frac{1}{3\times4}+\frac{1}{4\times5}+...+\frac{1}{2021\times2022}\right)\)

\(A=2\times\left(\frac{3-2}{2\times3}+\frac{4-3}{3\times4}+\frac{5-4}{4\times5}+...+\frac{2022-2021}{2021\times2022}\right)\)

\(A=2\times\left(\frac{1}{2}-\frac{1}{3}+\frac{1}{3}-\frac{1}{4}+\frac{1}{4}-\frac{1}{5}+...+\frac{1}{2021}-\frac{1}{2022}\right)\)

\(A=2\times\left(\frac{1}{2}-\frac{1}{2022}\right)\)

\(A=\frac{1010}{1011}\)