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Exercise "Reducing gas expenses", created by anonyme (a free exercise to learn English):
Results of the 298 people who have taken this test:
Average mark: 39.5 / 100 Share
Latest member with a 100/100 (perfect mark): ploplo / SWITZERLAND, on Wednesday 27 January - 15:19:
"Thanks a lot for the exercise !!"
They got a perfect mark
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