_____ in the mountains for a week, the two students were finally saved by the local police.
With the economic situation worsening _____, shopkeepers have to sell their goods _____ a big discount to attract customers.
—The play is _____ hit. —Let’s go to _____ theatre to enjoy it.
The old woman felt disappointed for she got nothing in _____ for her kindness.
—Mum, why have us eat much vegetable? —Because it is _____ to our health.
Although this _____sound like a simple task, great care is needed.