01:30Can you see the grey box? Sensory adaptation explained by Kit Yates #sciencedemo #optical #sensory
The Royal Institution
Sometimes active verbs are not the best verb forms to use in spoken English, even if they are grammatically correct. You might seem too demanding - or even rude. One way to avoid this potential problem is to use the passive. In our video Tim explains this point in more detail, with a little help from... Tim! For more on this topic, visit our website and do an exercise: http://www.bbc.co.uk/learningenglish/english/course/upper-intermediate/unit-12/session-4 ⭐ For more Stop Saying... videos, check out the Stop Saying... playlist 👉 http://bit.ly/2ETLwNi
Published 2016-02-25 · Watch on YouTube ↗
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01:30The Royal Institution
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