Well done Ruthio - you’ve got all the words right - the connection is something to do with their names especially the first few letters of each word. 
Wot? No takers for the connection?
A clue for the fourth one which might lead you in the direction of the other three.
Who sailed the ocean blue in fourteen hundred and ninety-two?
I think they were named after people
Philipines after Philip of Spain
Mauritius after prince Mauritz
Bolivia after Simon Bolivar
Colombia after Christopher Colombus.
That’s the connection Tezza
Philippines after Philip II of Spain
Mauritius after Prince Maurice of Orange
Bolivia after Simon Bolivar
Colombia after Christopher Columbus
Ruthio or yourself to do the next one.
Well done Tezza!! 
Definitely your turn next…hurry up Gilly’s drumming her fingers, I can hear her 
Let’s go for something a tad simpler.
What’s the connection.
——————
——————
——————
———————
Used.–
A please Tezza
Let’s go for something a tad simpler
What’s the connection
-
- A - - -
Used … A
S please Tezz
Let’s go for something a tad simpler
What’s the connection
-
- A - - -
S - - - - - -
Used … A S
T please Tezza
Let’s go for something a tad simpler
What’s the connection
-
- A - - -
S - - - - - -
Used … A S
Not used … T
An E please Tezza
Let’s go for something a tad simpler
What’s the connection
-
-
-
- E -
-
-
-
-
-
- E -
-
-
-
- A - - E
S - - - - - E
Used … A S E
Not used … T
Time for an N methinks
Let’s go for something a tad simpler
What’s the connection
-
-
-
- E -
-
-
-
-
-
- E -
-
-
-
- A - - E
S - - - - - E
Used … A S E
Not used … T N
How about a D then?
An R please
Let’s go for something a tad simpler
What’s the connection
-
-
-
- E R
-
-
-
- R D E R
-
- A - - E
S - - - R- E
Used … A S E D R
Not used … T N