I have a huge bed in my room.
There are three comfortable sofas in my house.
My dad brought a new television yesterday.
My mom was given a smart toaster so she decided to bake a cake for us.
My younger sister collects a lot of dolls and put them in her bedroom.

8. How far it is from Hanoi to HCM city?
9. I am interested in English.
10. She used to go to secondary school on foot.
11. We were disappointed with the ending of the film.
12. Solar panels will be installed on the roof of our house next week.
13. However, the new restaurant looks good. It seems to have few customers.
14. It's about over 120 km from my house to Ha Noi.

1. Kirsten Dunst was born in New Jersey, USA, in 1982.
2. It was New York Stories 
3. She played the part of a creepy kid.
4. She won the MTV Award for Best Breakthrough Performance and the Saturn Award for Best Young Actress.
5. Her most successful films are the Spider-Man films.

1. Alternative sources of energy will be developed quickly in the future. 
2. Solar energy will be converted into electricity in the future.
3. Have your students ever seen a lion before?
4. Have you ever used biogas for cooking before?

1. How far is it from your house to school?
2. How does he go to work?
3. How long did it take you to walk to school?
4. When will you go to the Flower Festival in Da Lat?

busier than my Dad

c?

ko thấy phần gạch chân?

a. 1/2 + 1/6 + 1/12 + 1/20 + 1/30
=1/1x2 + 1/2x3 + 1/3x4 + 1/4x5 + 1/5x6
=1 - 1/2 + 1/2 - 1/3 + 1/3 - 1/4 + 1/4 - 1/5 + 1/5 - 1/6
=1 - 1/6 = 5/6

b. 2/8 + 2/24 + 2/48 + 2/80 + 2/120
= 2/2x4 + 2/4x6 + 2/6x8 + 2/8x10 + 2/10x12
= 1/2 - 1/4 + 1/4 - 1/6 + 1/6 - 1/8 + 1/8 - 1/10 + 1/10 - 1/12
= 1/2 - 1/12 =  6/12 - 1/12 = 5/12