He waited with his companion_________the rescuers came, and then helped them carry her back down the mountain.
________ the rapid growth of short messages sent by mobile phones, the increasing number of criminal cases appeared through short messages.
—Have you read the book War and Peace ________ Tolstoy? —No. I’ve never heard of it.
The study you have been making ________ the ancient Chinese characters is an instructive job.
Areas where students have particular difficulty have been treated ________ particular care.
Food prices increased ________ 10% in less than a year.