15 . An : let's go to the swimming pool 

                 C . Great

16 . Mary is excellent at Maths she can do the counting very B .Quickly 

17 . A : pearson , can you come to the libary at five after school today ?

                 B  Sorry , i can't .

18 . The story is so uninteresting it means that the story is 

                 D.boring .

19 . Linda : Did you you have  cake ?

                 C.Yes,i did .

20 . C .mine/their

21 . It is 10 p.m now there is a footbal match .

                D.after the news .

22 . Whose ____ are they ? They are ____ 

                A.ruler/mine .

23 . A : Thanks for gift , Jolie B :_____

               A.no problem .

24 . It ____ me thirty minutes to go school every day .

               A.takes

25 . There are two beautiful ____ on the wall .

               B.pictures

26 . Let's go ____ .

               D.to swim

27 . ____ do you go to school ?

               D.what

`text{15. C great}`

`text{16. B quickly}`

`text{17. B Sorry, I can't}`

`text{18. D boring}`

`text{19. C Yes, I did}`

`text{20. C mine/their}`

`text{21. D after the news}`

`text{22. A ruler/mine}`

`text{23. A no problem}`

`text{24. A takes}`

`text{25. B pictures}`

`text{26. D to swim}`

`text{27. D what}`