A backboard could mean:
a board placed at or forming the back of something, such as a collage or piece of electronic equipment.<span>
an upright board behind the basket, off which the ball may rebound.
a board used to support or straighten a person's back, especially after an accident.
It depends on the context of the word.
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Answer:
The cat hid his mouse toy under the bed would be correct. In this sentence the comma is not needed.
Cyclops is motivated to do this because Odysseus tricked him and humiliated him, and even had the hubris in the end to mess with him about it. Poseidon is the Cyclops' father so naturally the Cyclops wants help and Poseidon can do it because Odysseus is traveling by sea.
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