Global warming is a big _______ for all and it’s important to raise awareness about climate change.
As the years passed,many occasions—birthdays,awards,graduations—_______with Dad’s flowers.
The biggest problem for most plants,which_______just get up and run away when threatened,is that animals like to eat them.
Polar bears live mostly on_______sea ice,which they use as_______platform for hunting seals.
_______the silence of the pauses,we could hear each other’s breathing and could almost hear our own heartbeats.
Reality is not the way you wish things to be,nor the way they appear to be,_______the way they actually are.