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Ecology includes the study of how animals relate to their ___________.
The ____ on the door said pull.
You can't support a building with just one ______.
The leaves turn to gold in ______.
My dog's ______ is always out of his mouth.
Please send me a copy of your _________.
I use a ____ to get tangles out of my hair.
Development of new ________ is vital to an economy.
Make sure you ______ out for my call.
When will you deign to ______ me?