Running in the morning fresh air _________our health and we _________it.
My father and my mother have been married for 30 years, and never once ______ with each other.
Although the old man was ______ death, he still fought with the disease bravely.
Many countries are increasing their use of natural gas, wind and other forms of ______.
It may not be a great suggestion. But before ______ is put forward, we will make do with it..
Try not to cough more than you can ______ since it may cause problems to your lungs.