It is said that this project will take ________ two to three years, and cost about 200 million yuan.
He feels that his health ____ owing to ____ a long walk every other day.
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.