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________ is a group of letters at the beginning of a word which changes its meaning.
It's a ______ dinner so we need to dress smartly.
The get together was just for friends and very ________.
Six tenth is __________ to three fifth in fraction.
___________ fraction is to make a fraction in its simplest form.
We built _________ above the water so we can move.
The _________ brought water to our dry land.
Raised banks ___________ along the river; they effectively make the river deeper so it can hold more water.
___________ is vital in providing food for the world.
A ditch was use used to bring water to the _____.
The farmers __________ the land to grow the crops.
Volcanic soil is very _______.
The normal Aztecs were ________ if they build a second floor in their house.
_____ is created when water boils.
Ignite the _______ and warm up this house.
