Women _______ drink more than two cups of coffee a day have a greater chance of having heart disease than those ________ don’t.
I have told you the truth. ______ I keep repeating it?
Their relationship_______ ups and downs over the past century.
________carefully if any change occurs when doing experiments in the lab.
______ before bed, cellphones can result in a restless night.
Love is_____ makes you smile when you are tired.