— It’s raining heavily and we can’t go climbing today.— If only the weather _______ fine.
We must take steps to prevent the __________ world population.
The amount of money that he saved reached _________ 30000 dollars.
It is pretty well understood_______controls the flow of carbon dioxide in and out of the atmosphere today.
Mary got into acting purely _____________.
It is no use thinking about your ________ youth.