In this country, ___________ children shouldn’t smoke.A. five-years-old B. five-year-old C. five-year-olds
They don’t know what ___________ the problem .
Don’t try to do everything at once. Take it a bit _______________.
We __________ obey the traffic rules.
What a ________ rain ! It has rained ______ since last night.
—Andy finished first in the competition!--- Really ? Sounds ________ to believe.