When Helen saw his tutor nod ________ to her, she calmed down and went on with her performance.
________ 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.
Food prices increased ________ 10% in less than a year.
—I wonder what’s on television this evening. Have you got a newspaper?—Yes,________ TV programmes are ________ the back page.