The harm the modern farming methods have done the countryside is considerable.
I think the doctor is able to care of _____ is the matter with your son .
Let us not waste ______ time we have left .
Do you consider it any good _____ the truck again ?
It's nearly seven o'clock . Jack _____ be here at any moment .
If you _____ stop smoking , you can only expect to have a bad cough .