Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:
Almost the only evidence of the presence of human beings on [#permalink]
14 May 2005, 03:57
100% (01:07) correct
0% (00:00) wrong based on 0 sessions
HideShow timer Statistics
Almost the only evidence of the presence of human beings on the earth
for a period longer than half a million years are vast quantities of stone tools.
(A) longer than half a million years are
(B) of more than half a million years are
(C) of more than half a million years is
(D) lasting longer than half a million years is
(E) of longer than half a million years are
the word period is there wheather we like it or not, so if we say 'for a period of more than a million years', than this sentence becomes awkward - it's better to say 'for more than a million years'. The same is true for A by the way, you can remove 'period' from there too.
However, if we have 'lasting' than period becomes a necessary word.
So the whole point of this excersise is to justify presence of 'period' in that sentence, isn't that wierd?