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Exercise "How long...?/ Since when...?: tenses.", created by here4u (a free exercise to learn English):
Results of the 6 033 people who have taken this test:
Average mark: 72 / 100 Share
Latest member with a 100/100 (perfect mark): victoria / FRANCE, on Sunday 30 August - 19:07:
"Surprise! un bon score! Merci au professeur!"
They got a perfect mark
Stats (6032 candidates)
Question 1 passed: 60.8 %
'Since when have you been the boss here?' ' *
Question 2 passed: 76.4 %
'How long did he live in Australia?' ' *
Question 3 passed: 81.3 %
'Since when has he been interested in tennis and tennis players?' ' *
Question 4 passed: 78.7 %
'How long are you staying in New York?' ' *
Question 5 passed: 67.2 %
'How long had you known her?' '*
Question 6 passed: 72.9 %
'Since when do I need your permission to go out?' '*
Question 7 passed: 62.5 %
'How long have you been in hospital, now?' *
Question 8 passed: 75.8 %
'How long have you been married?' '*
Question 9 passed: 57.2 %
'How long did you spend in the USA last year?' ' *
Question 10 passed: 77.1 %
'Since when did the Internet begin?' ' *
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