281.
Future (18833 candidates)
282.
Egyptian pyramids (933 candidates) 
283.
Las placas tectónicas (654 candidates) 
284.
Tenses: saber / tener (831 candidates) 
285.
Placement test (454005 candidates) 
286.
A / EN (14773 candidates) 
287.
Conjugation : Correct tense (5521 candidates) 
288.
Preposition A (11493 candidates) 

289.
Imperfect or simple past? (44048 candidates) 
290.
Por/Para (27320 candidates) 
291.
Complete : Melting of the glaciers (698 candidates) 
292.
Complete : Chicle gum (1050 candidates) 
293.
Ser / Estar (21324 candidates) 
294.
Blue whale (largest baleen whale) (1607 candidates) 
295.
Present (3954 candidates)
296.
Definite articles (25369 candidates) 

297.
Subjunctive Present (6196 candidates) 
298.
Mistaken words (1002 candidates) 

299.
Impérative (17404 candidates) 
300.
Prepositions (1305 candidates) 

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