As ________ as the sky is your mind. As deep as the sea is your kindness.
Polar bears live on sea ice, which they use as a platform for hunting seals.
The washing machine is environmentally friendly because it uses ___ water and electricity than ___ models.
—Was it two months ago__ you luckily got an opportunity to spend your holidays in Spain?—______. John was the lucky dog.
In ______________, fashions changed and many factories closed down.
They ______ a small laboratory and devoted every spare moment to this work.