North America
Most popular in the world
How many ...
Missing collocation
What’s the object?
100
Which US city has the biggest population?
New York, approximately 8,500,000
100
What is the most popular sport in the world?
Soccer (AmEng) / Football (BrEng)
100
days are in September?
30
100
Fast, healthy, Italian
Food
100
Pages, chapters, index
Book
200
How many states are there in the USA?
50
200
What is the most spoken language in the world?
Mandarin, over 1 billion speakers
200
players are there on a soccer team?
11
200
Guest, class, hotel
Room
200
Lense, shutter, flash
Camera
300
What is the capital city of the USA?
Washington DC
300
What is the most popular ice cream flavour?
Vanilla
300
planets are there in the solar system?
8
300
Ball, board, computer
Game
300
Button, collar, cuff
Shirt
400
What is the most popular sport in the USA?
American football 
400
Excluding water, what is the most popular drink in the world?
Tea
400
teeth do most adults have?
32
400
Interview, application, description
Job
400
Hands, strap, face
Watch
500
What is the biggest US state?
Alaska
500
Which country is the most popular tourist destination?
France
500
countries are there in the world?
196
500
Day, business, round, boat
Trip
500
Tongue, sole, laces
Shoe