1.I don't like....tea(ice) ice

2.there....take vegetables to the market.(work) worker

3.My sister ......english to the poor children every day(teach) teaches

4.we like the.....atmosphere in the library.(peace) peacefull

Mr. Tung is a teacher and he doesn’t __teach__ classes in the afternoon.

1.what is.... name?(he) his

2.look at....pictureson the wall.(that) those

3.I hate the....in the city.(noisy) noise

4there are four....in my family.(child) children

5.The boy is....on the bench in the park.(sit) sitting

6.My mother is....than my father.(weak) weaker

What language do you usually speak with your family ?

\(\Rightarrow\) I usually speak Vietnamese with my family.

What language are you speaking now ?

\(\Rightarrow\) I am speaking Vietnamese.

What music do you usually listen to ?

\(\Rightarrow\) I listen to Pop music.

What music are you listening to now ?

\(\Rightarrow\) I'm listening EDM now.

Who are you sitting next to right now ?

\(\Rightarrow\) My dad is sitting next to me right now.

Who do you usually sit next to at dinner ?

\(\Rightarrow\) I usually sit next to my brother.

which subject do you like at school ?

I like .......

what is your favorite school day ?

I like ( Monday )

Có 6 số là : 77 ; 84 ; 91 ; 98 ; 115 ; 122

Điền since hoặc for vào cho thích hợp

1.My family has owned this farm since 1990

2. I haven't eaten any meat for over a year

1. A = 4 + 2² + 2³ + 2⁴ + .. + 2²⁰

Đặt A₁ = 2² + 2³ + 2⁴ + .. + 2²⁰

2A₁ = 2.( 2² + 2³ + 2⁴ + .. + 2²⁰)

= 2³ + 2⁴ + 2⁵ + ... + 2²

2A₁ - A₁ = (2² + 2³ + 2⁴ + .. + 2²⁰) - (2³ + 2⁴ + 2⁵ + ... + 2² )

A₁ = 2²¹ - 2²

= 2²¹ - 4

=> A = 4 + 2²¹ - 4

=> A = 2²¹

Ta có dãy số từ 1 đến 154 là : 1 ; 2 ; 3 ; 4 ; ... ; 154

Dãy trên có ; ( 154 - 1 ) : 1 + 1 = 154 ( số hạng )

Dãy trên bằng : ( 154 + 1 ) . 154 : 2 = 11935

=> Tổng các số từ 1 đến 154 ko chia hết cho 2 ; chia hết cho 5

a) S = {71 ; 72 ; 73 ; ... ; 7131 }

b) S có : (7131-71) : 1 + 1= 7016

S = ( 7131 + 71 ) . 7016 : 2 = 25264616