People are encouraged to speak openly，but careless words are ________to hurt others’ feelings. 

After a day’s walk in the desert, the explorers reached the camp, _______.

Having no child of their own, the Smiths took in a _____ girl, Yuan Yuan by name．

His ________ description of his adventure in the forest made us want to have a try ourselves.

As the graduates grew and job opportunites became_________, people were put under high pressure fearing they might lose their jobs at any time.