помогите пожалуйста !

17) tourist
monument 
tower
square
fortress
column
theatre 
-
- 
royal?
18) A:Okay,but there is a shop.
B:I'am afraid you're wrong. Just go there and you'll see it. I know what i'm saying.
19)1-Excuse me...
2)I'm afraid...
3) How can i ...
4)It's very easy...
5) Thank you...
6)You're welcome...