1. Lan’ll have a party on Friday evening.

2. Would you like to come my my house for lunch?

3. She takes care of her family.

4. She works in a local supermarket.

5. My mother works in the field with my father.

6. Does your father work in Hanoi?

7. David is good at Math.

8. What do you do in your free time?

9. Are you interested with sports?.

10. There’s a good film at the moment.

11. Thanks for your letter.

12. I’ll see my mom and dad on their farm.

13. We have to work hard at home and at school

14. We’ll visit her at Christmas.

15. Are you tired to watching TV?

16. She often brings them at school.

17. He works in a factory.

18. We always go to Ha Long Bay on vacation.

\(A=\frac{2013^{2014}+1}{2013^{2015}+1}\)

\(\Rightarrow2013A=\frac{2013\left(2013^{2014}+1\right)}{2013^{2015}+1}=\frac{2013^{2015}+2013}{2013^{2015}+1}\)(1)

\(B=\frac{2013^{2012}+1}{2013^{2013}+1}\)

\(\Rightarrow2013B=\frac{2013\left(2013^{2012}+1\right)}{2013^{2013}+1}=\frac{2013^{2013}+2013}{2013^{2013}+1}\)(2)

Từ (1) và (2) => A<B

12………………..is your warranty period?- About 5 years.

A how long B how C how wide D how much

11 …………………are your products so expensive?- Because we imported materials from Italy.

A which B why C how well D how cheap

12=tá

bắp=ngô

tá ngô=tố nga

ôi cuộc đời đã xa mãi ~~~~

Dat cau hoi cho phan gach chan

Famers work very hard

=> How do farmers work?

Do \(ab+1>3\)

Nên \(ab+1\) là số lẻ

Suy ra: là số chẵn hoặc là số chẵn

Suy ra hoặc

+) Khi

a) 0^3=0 , 1^3=1, 2^3=8, 3^3=27, 4^3=64, 5^3=125, 6^3=216, 7^3343, 8^3=512, 9^3=729

b)64=8^3

196=14^2

169=1^2

c)0^2=0, 1^21, 2^2=4, 3^2=9, 4^2=16, 5^2=25, 6^2=36, 7^2=49, 8^2=64, 9^2=81, 10^2=100, 11^2=121, 12^2=144, 13^2=169, 14^2=196, 15^2=225, 16^2=256, 17^2=289, 18^2=324, 19^2=361, 20^2=400

d)27=3^3

125=5^3

216=6^3

lắm thế thì có gì đâu mà ****