One more week, _______ we will accomplish the task.

Excellence is not difficult ---simply decide right now to give it your best shot---____you will be amazed with ___ life gives you back.

You had better_________because you have to drive back home.

When ______ comes to research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.

 You can never imagine what great difficulty I have _____ your house.