One night all of his ________ signs began to drop sharply and the head teacher, who believe in the concept that no one should die alone, began to call his family members to the hospital. [ ]

His uncle went abroad in 2010, and _______since.

_____enough thought to who thereaders of the book would be，the publisher made awrong decision andsuffered a heavy financial loss．

Experts believepeoplecan waste less food by shopping only when it is necessary

The police warned us __________ into the house alone.