We all know the truth ___ there are air, water and sunlight there are living things.
The old couple have been married for 40 years and never once __________ with each other.
Only after my friend came __________.
I have been living in the United States for twenty years, but seldom __________ so lonely as now.
__________, his idea was accepted by all the people at the meeting.
Hearing the dog barking fiercely, away __________.