Ex : 'open

'student              '  teacher               ' classroom                e'raser              ' pencil

'ruler                    ' window                 ' morning               '   evening          '  afternoon

Viết các câu trả lời :

Ex : Is this your pen : Yes. This is my pen. / No. That is my pen.

Is this your classroom ? ( Yes ) Yes , this is my classroom

Is this your book ? ( No ) No. That is my book

Is that your teacher ? ( Yes ) Yes , that is my teacher

Is this your pencil ? ( No ) no, that is my pencil 

Is that your eraser ? ( No ) no , this is my eraser

Hoàn tất đoạn hội thoại.

Nam : Hello, Jane. How are you ?

Jane : I am fine , and  you ?

What is that in English, Jane ?

Jane : Well, It's an eraser.

Nam : Is that your eraser ?

Jane : Nom. This is an eraser

------------------------------------Còn nữa------------------------------------

a) 16^x : 4^x = 16 
=> ( 16 : 4 )^x = 16 
=> 4^x = 16 
<=> 4^x = 4²
=> x = 2 
b) ( 2x + 1 ) ³ = -64 
=> ( 2x + 1 )³ = ( -4 )³
=> 2x + 1 = -4 
=> 2x = -4 - 1 
=> 2x = -5 
=> x = \(-\frac{5}{2}\)
c) ( 3x - 1 )² = 16 
\(\Rightarrow\begin{cases}\left(3x-1\right)^2=4^2\\\left(3x-1\right)^2=\left(-4\right)^2\end{cases}\)\(\Rightarrow\begin{cases}3x-1=4\\3x-1=-4\end{cases}\)\(\Rightarrow\begin{cases}x=\frac{5}{3}\\x=-1\end{cases}\)
d) 9^x+1 = 3² 
=> (3² ) ^x+1 = 3² 
=> 3^2.(x+1) = 3²
=> 2(x + 1 ) = 2 
=> x + 1 = 1 
=> x = 0 

 11/56

a) Ta có : mOn = 70⁰
Mà aOb là góc đối đỉnh với mOn 
=> aOb = mOn = 70⁰
Ta lại có : mOn + bOm = 180⁰ ( hai góc kề bù ) 
=> 70⁰ +  bOm = 180⁰ 
=> bOm = 180⁰ - 70⁰ 
=> bOm = 110⁰
b) Ta có : Op là tia phân giác của mOn 
=> mOp = nOp = mOn : 2 = 70⁰ : 2 = 35⁰
Op là tia đối của tia Op 
mà mOn = aOb 
=> mOp = aOp' = 35⁰
Chúc bạn học tốt !

1. Clement Clarke Moore wrote the poem in 1823.
⇒ The poem is written in 1823 by Clement Clarke Moore .

2. “We are waiting for the school bus”, said the children.
⇒ The children said "they were waiting for the school bus "

3. Roses can’t possibly grow in such poor ground.
⇒ It is impossible for roses to grow in shuch poor ground

4. The last time I played tennis was in 1990.
⇒ I haven’t played tennis since 1990

1.          A.knife                            B.of                            C. leaf                       D.life

2.          A.although                     B.enough                   C.paragraph            D.cough

1.          A.junk                             B.sun                         C. put                        D.adult

1.          A.headache                   B.architect                 C.chemical               D.children

1.          A.aerobics                     B.calories                 C. cycling                  D.doctor

( 9/5 +  8/5 )  : 17 /15

= 17/15 : 17/15

=225/85=3

1.My father and I (be) are in Hue

2.Mr.Ba (not be) is not here

He (be) is in the garden.

.He (plant) plants the flowers and trees.

3.Shh!They (study) are studying in the library.

4.Vy and Phong (not do) don't do their homework

5. does Your father (like) like coffe?No,he doesn't