The reason why they failed the test was ____ they didn’t sleep at all the night before.
All the books written by Dickens are available in our library. You may borrow ___ you love.
____of danger in the street at night, she had to go home, with a friend ___ her.
–How was your interview with the famous basketball player—Yao Ming? --I was quite nervous at first, but his warm smile put me____.
John once worked in a remote mountain village school, which is ____only on foot.
The president was so absorbed in his work that not a sound ______.