答えがなくて丸つけできないので、この問題の答え教えて頂きたいです。

1 4 2 4 3 3 4 3 5 1 6 2 7 4 8 3 9 4 10 4 11 4 12 2 13 to solve→ solving 14 at my staying→ in my staying 15 Not have→ Not having 16 little difficulty in finding his 17 feel like having anything sweet for 18 sign announcing that smoking is prohibited in 19 was found sleeping in a parked car 20 making it impossible to drive