Those who don’t get their sufficient sleep are actually sending a(n) _____ to severe problems in their life.
Lily’s mobile phone was left in a taxi accidentally, never ______ again.
At first the institute refused to purchase(购买) the experiment instrument, but this decision was ______ changed.
The shy girl felt ______ and uncomfortable when she could not answer her teacher’s questions.
Don’t get upset—I was only ______. .
This book tells _____ life story of John Smith, who left ______ school and worked for a newspaper at the age of 16.