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The blank is used for an event that has been completed before the present moment in time.
answered
Apr 23, 2018
English
high-school
4
votes
68.1k
views
What component of Earth’s atmosphere exists entirely as a result of photosynthesis?
answered
Mar 9, 2018
Biology
college
7
votes
55.3k
views
How do I use buoyancy in a sentence
answered
Dec 1, 2017
English
middle-school
4
votes
8.3k
views
Pele is buying a pack of gum that cost 0.65 dollars .the sales tax is found by multiplying the cost of the gum by 0.07 dollars . what is the sales tax on the gum PLEASE HELP! ! !
answered
Jan 21, 2017
Mathematics
middle-school
3
votes
152k
views
Which of the following groups of people brought public attention to PTSD? A. Counselors B. Doctors C. Teachers D. Veterans
answered
Jun 4, 2016
English
high-school
4
votes
127k
views
Which number is a factor of 21 but not a multiple of 7
answered
Feb 27, 2016
Mathematics
middle-school
6
votes
221k
views
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