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Addition, subtraction, multiplication and ________ are mathematical operations.
The ________ of Belgium led to England declaring war on Germany.
_________ can lead to misunderstanding.
The ________ to move was agreeable.
Cars are designed to crumple in a _________.
I like to watch __________.
The naughty child needed ___________.
___________ is the way things move forward.
The surgeon used a sharp knife to make his first ________.
It was an optical ________.