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Exercise "Present perfect continuous or present continuous?", created by anonyme (a free exercise to learn English):
Results of the 23 104 people who have taken this test:
Average mark: 57 / 100 Share
Latest member with a 100/100 (perfect mark): ploplo / SWITZERLAND, on Friday 02 November - 18:26:
"Thanks a lot for the exercise!!"
They got a perfect mark
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