Ranked by: number of candidates
1.
Determiners (152630 candidates) 
2.
Adverbs (25764 candidates) 
3.
The four seasons (21494 candidates)
4.
Food (12624 candidates) 
5.
London (10494 candidates) 
6.
Superlative (5837 candidates) 
7.
Temper (5664 candidates) 

8.
Past tense/Charlie Chaplin (4838 candidates)
9.
Lion (3085 candidates)
10.
Complete the text (2764 candidates) 
11.
Olympic Games (2528 candidates)
12.
Dolphins (2219 candidates)
13.
Good answer with adjective (1720 candidates) 
14.
Football (1572 candidates) 
15.
Ecuador (1417 candidates) 
16.
Proverbs (1294 candidates)
17.
Proverbs (1126 candidates) 

18.
Quantities (827 candidates) 
19.
Sentences (605 candidates)

