It was important near a snake.
We can make a fire ______ the room warm so that we can chat for a while.
He had to retire(退休) early ______ poor health.
One of the most interesting places in Yangzhou ________ are often visited by foreigners is the West Slender Lake.
—I can’t find Mary. Where’s she?—Sorry, I don’t know ______.
—Is the film interesting?—I thought it would be. But ______, it’s very boring.