Take IELTS (administered by Eiken) .
Or, you can take IELTS (administered by JSAF) .
Prepare for IELTS with materials from the British Council.
More materials to prepare for the IELTS.
Take TOEIC.
TOEIC vocabulary (nouns) on Quizlet.
TOEIC vocabulary (adjectives) on Quizlet.
TOEIC vocabulary (mixed) on Quizlet.