—What's that terrible noise?—The neighbors __________ for a party.
It seems that living green is ________ easy and affordable. A small step makes a big difference.
A housing bubble is an economic situation _____ occurs when house prices rise much too fast.
—Don’t be so naughty! Be your ________.—Got it,mum.
—“Crash diets” make us lose weight fast and I am all into that. —But it_______better to work out.
The old farmer’s eyes still shone bright in the wrinkled brown face and his step as he came across the room was ________, though slow.