_____ you are in a speech contest or you are giving a talk in class, a little preparation will make your presentation organized and dynamic.
Our new system will come into effect soon, _______ more efficient use we can make use of it.
Remember that the best relationship is one _______ you love for each other is greater than your need for each other.
Please look at the notice! Smoking is not allowed here. If you _______ smoke, go to the special area, please.
Alan gave us the reason for his coming late to class _______ his bicycle broke down on his way.
E-libraries are more and more popular in that they give us access to books when we are unable to _______ get to a library.