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Exercise "'How long ...'? ...'for a long time!'", created by anonyme (a free exercise to learn English):
Results of the 12 505 people who have taken this test:
Average mark: 30.5 / 100 Share
Latest member with a 100/100 (perfect mark): sway / CANADA, on Thursday 12 December - 19:54:
":)"
They got a perfect mark
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