This is an illness that can result in total blindness if_______.
I ______ worry about my weekend—I always have my plans ready before it comes.
It’s no use ______ without taking action.
To stay awake, he finished a cup of coffee and ordered ______.
Graduation is a good time to thank those who have helped you ______ the tough years.
Today we have chat rooms, text messaging, emailing… but we seemthe art of communicating face-to-face.