Ranked by: number of candidates
1.
Determiners (152978 candidates) 
2.
Adverbs (25794 candidates) 
3.
The four seasons (21503 candidates)
4.
Food (12666 candidates) 
5.
London (10583 candidates) 
6.
Superlative (5843 candidates) 
7.
Temper (5667 candidates) 

8.
Past tense/Charlie Chaplin (4895 candidates)
9.
Lion (3092 candidates)
10.
Complete the text (2766 candidates) 
11.
Olympic Games (2534 candidates)
12.
Dolphins (2220 candidates)
13.
Good answer with adjective (1720 candidates) 
14.
Football (1578 candidates) 
15.
Ecuador (1422 candidates) 
16.
Proverbs (1294 candidates)
17.
Proverbs (1126 candidates) 

18.
Quantities (830 candidates) 
19.
Sentences (607 candidates)

