One of the biggest problems in food production has always been that people have no reliable access to exact information, ____________ is often the case in China.
At the age of twenty Steve left his hometown, _____ to return without making his mark.
Although John was the eldest in the family, he always let his sister _____ charge of the house.
The island where these rare birdsnest has been declared a _____.
Kate's ambition to become a nurse _____ from a desire to help others.
Dress warmly, _____ you'll catch cold.