Choose the best option A, B, C or D to complete these sentences. (2,6 pts)

13. At break time, I go to the library and...........books.

A. read                                    B. play                        C. listen                      D. do

14. Nam ........... football now. He’s tired.

A. doesn’t play                     B. is playing              C. isn’t playing         D. not playing

15.  In our dining room, ........... four chairs and a table. We have breakfast there every morning.

          A. there is                            B. there are                C. there aren’t          D. there isn’t

16. My __________ is in the garage.

A. father car                          B. car father              C. car’s father           D. father’s car          

17. Mi is ________. She helps me with my homework

A. kind                                   B. shy                         C. hard-working       D. creative

18. My brother __________  short black hair.

 A. have                                  B. has                                     C. is                            D. does

Tìm số tự nhiên x , biết

\(2\cdot\left(x-1\right)^2=8\)

\(\left(2x+1\right)^3=125\)

\(\left(x-2\right)^5=243\)

\(5\left(x-4\right)^2-7=13\)

\(221-\left(3x+2\right)^3=96\)

Tính

\(17^0+\left[5^{13}:5^{11}+\left(135-130\right)^3\right]\)

\(\left[36\cdot4-4\left(82-7\cdot11\right)^2:4\right]-2016\)

Tìm x,y,z biết:

a) \(\dfrac{x}{5}=\dfrac{y}{2}\) và \(x-y=9\)

b) \(\dfrac{x-3}{12}=\dfrac{-3}{3-x}\)

c) \(\dfrac{x}{2}=\dfrac{y}{3};\dfrac{y}{5}=\dfrac{z}{4}\) và \(x-y-z=-49\)