There are many choices to make in life but _______ is more important than what goes on in your heart.
---Mr. Smith, ______ he have all these letters typed for you right away?---He ______. They should be ready by 10 o’clock this morning.
I won’t give you such help ______ you tell me the truth. It’s beyond my ability.
---Mary has been trained hard for the last two years. ---______ she did so well at the track and field meet yesterday.
When ______ comes to research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.
One of the best ways for people to keep fit is to ______ healthy eating habits.