11. want->wants

12.is->will be

13.interesting->uninteresting

14.off->on

15.walking->walk

16.are->is

17.much->many

18.few->little

19.to->in

20.can't->couldn't

@kim

11. One of my friends want to meet you now => wants

12. She is healthier It she does exercise mere often => will be

13. Though the film is interesting, I like watching it. => uninteresting

14. It's very dark Turn off the light , Please => on

15. Nga used to walking to school when she was in grade 5 => walk

16. There are nothing in the fridge, so let's go out for dinner. => is

17. How much books do you need now? ->5 please. => many

18. She has a lot of money but I have a few => littel

19 It's interesting to playing board game after school => in

20 It rained yesterday So we can't play football => couldn't