1

1. goes

2. Are you writing 

3. haven't cleaned

2

1. Where are they planting tree?

2. When will she visit Hanoi?

3. What time does she often watch TV?

4. How often do you go to school?

5. How are all the buildings in London?

6. What is the weather in Sweden in the winter?

7. Where was your father lat month?

8. Why did she go to the doctor?

9. What time did Nam leave home yesterday?

10. Where will your future house be?

11. How often does she go to the fitness center?

12. When did they join the environment project?

13. what subject does your class have on Monday?
14. Where will you travel to by a super car ?

1. goes

2. Are you writing

3. Haven't cleaned

Bai 2:

1. Where are they planting the tree ?

4. How often do they  go to school?

1.1.goes

2. Are you writting

3.haven't cleaned

2.1 Where are they planting the tree ?

2. When will she visit hanoi ?

3. When does she often watch TV ?

4.How often do you go to school ?

5. How are all the buildings in London ?

6. What is the weather in sweden  in winter ?

7.Where was your father last month ?

8. Why did she go to the doctor ?

9. What time did Nam leave home yesterday ?

10. Where will be your future house ?

11. How often does she go to the fitness center ?

12. When did they join the environment project ?

13. What subject does your class have on monday ?

14. Where will you travel by a super carr ?

a. Chủ ngữ: Xa quá khỏi Hòn một đỗi

    Vị ngữ: là bãi Tre

b. Biện pháp nhân hóa: tre - bình yên, thanh thản ; biển - giỡn sóng

c. tác dụng của biện pháp nhân hóa: làm cho những sự vật thiên nhiên ở bãi Tre trở nên sinh động, mang linh hồn con người.

d. Nội dung: Vẻ đẹp thiên nhiên ở bãi Tre

O H N I K J

a) Trên nửa mp có bờ chứa tia OH , ta có 

   Góc HOI < Góc HOK ( 30⁰ < 80⁰ )

\(\Rightarrow\)Tia OI nằm giữa 2 tia OH và OK . Ta có :

    Góc HOI +Góc IOK = Góc HOk mà Góc HOI =30⁰ , Góc HOK = 80⁰

^{\(\Rightarrow\)}30⁰+Góc IOK = 80⁰

                  Góc IOk = 80⁰-30⁰

\(\Rightarrow\)        Góc IOK = 50⁰

b) Vì tia OI và OJ là 2 tia đối nhau \(\Rightarrow\)Góc IOJ = 180⁰ 

Trên cùng 1 nửa mp có bờ chứa tia OI , ta có :

       Góc IOk < Góc IOJ ( 50⁰ < 180⁰ )

\(\Rightarrow\)Tia OK nằm giữa 2 tia OI và OJ . Ta có :

        Góc IOK + Góc KOJ = 180⁰ mà Góc IOK =50⁰

\(\Rightarrow\)        50⁰+ Góc KOJ = 180⁰

                                 Góc KOI = 180⁰-50⁰

\(\Rightarrow\)                  Góc KOI = 130⁰

c) Vì tia ON là tia phân giác của Góc IOK , ta có :

       Góc ION = \(\frac{GócKON}{2}\)= \(\frac{50^0}{2}\)=25⁰

\(\Rightarrow\)Góc ION =25⁰

Hok_Tốt

#Thiên_Hy

1.

Bài làm:

\(2x.\left(\frac{1}{2.5}+\frac{1}{5.8}+\frac{1}{8.11}+\frac{1}{11.14}\right)=\frac{1}{21}\)

\(2x.\frac{1}{3}.\left(\frac{3}{2.5}+\frac{3}{5.8}+\frac{3}{8.11}+\frac{3}{11.14}\right)=\frac{1}{21}\)

\(2x.\frac{1}{3}.\left(\frac{1}{2}-\frac{1}{14}\right)=\frac{1}{21}\)

\(2x.\frac{1}{3}.\frac{3}{7}=\frac{1}{21}\)

\(2x.\frac{1}{7}=\frac{1}{21}\)

\(2x=\frac{1}{3}\)

\(x=\frac{1}{6}\)

vậy \(x=\frac{1}{6}\)

cam on nhieu nhe ban

a) x.(x+2)=0

=> \(\orbr{\begin{cases}x=0\\x+2=0\Rightarrow x=-2\end{cases}}\)

vậy x=0 hoặc x=-2

b) ( x + 3 ) . ( x - 4 ) = 0

=> \(\orbr{\begin{cases}x+3=0\Rightarrow x=-3\\x-4=0\Rightarrow x=4\end{cases}}\)

vậy x=-3 hoặc x=4

\(\text{a) Ta có:}\)

\(x\left(x+2\right)=0\)

\(\Rightarrow\orbr{\begin{cases}x=0\\x+2=0\Rightarrow x=-2\end{cases}}\)

\(\text{b) Ta có}:\)

\(\left(x+3\right)\left(x-4\right)=0\)

\(\Rightarrow\orbr{\begin{cases}x+3=0\\x-4=0\end{cases}}\Rightarrow\orbr{\begin{cases}x=-3\\x=4\end{cases}}\)

1.Give the correct forms of verbs

1.The Earth(go)...goes.....around the sun

2....Are you writting ..........(you/write) a letter at present?

3.I......haven't cleaned.....(not clean)my room for a long time

2.Make questions for underline words

1.They are planting the tree in the garden

Where are they planting the tree?

2.she will visit ha noi next week

When will she visit Hanoi?

3. she often watches tv at 6.45pm in the evening

When does she often watches tv?

4.we go to school every day

When do you go to school?