KhÔng có gì là không thê đoi vơi môt trái tim san sàng

uk

D , a-d-c-b

She was punished yesterday without permisson for going out by her mother .

1, Lan was born on 24 September .

2, She is ten years old now .

3, There are four people in her family .

4, Her sister is a teacher .

5, She likes listening to music in her free time .

um,..

S2 = (-2)+4+(-6)+8+........+2004

     =  [(-2)+4]+[(-6)+8]+...........[(-2002)+2004] 

     =   2+2+......+2

Dãy trên có: (2004-2):2+1 = 1002 ( số hạng) Tương ứng với: 1002:2+501( cặp)

Vậy S2 =  2.501

       S2  = 1002

Đúng không? Tick nha?

1, It is hot in Ha Noi now . What is the weather like in Ha Noi .

Sydney ? It is very cold .

2, I'm doing my homework .

And where is your brother Dong ?

He is in his room . He is reading book .

3,What is the time , Alice ?

It is a quarter to one , let's go to school .

All right , Let's go . Our lessons begin at one o'clock .

V-ing lÀ đong tư thêm đuoi ing ( v : dong tƯ )

VD: washing ; cooking