This entry was last updated onTuesday 23 September 2014 1250

Can you repeat this sentence, but add in punctuation?
This entry was last updated on:Tuesday, 23 September 2014 12:50
our clearest recollection of Professor Chrystal stands out from a mist of dingy lecturerooms in the old buildings

Can you repeat this sentence, but add in punctuation?
...our clearest recollection of Professor Chrystal stands out from a mist of dingy lecture-rooms in the old buildings.
Northern lights occur on a daily basis but cannot be seen during the summer months because there is too much light in the sky

Can you repeat this sentence, but add in punctuation?
Northern lights occur on a daily basis, but cannot be seen during the summer months, because there is too much light in the sky.