The teeth are _____ , and my grandmother often takes them out to wash them and then put them back.
33. The number of children who have lost parents to AIDS ________ to rise to over 26 million in 2011.
32. Children are easily exposed to the Internet culture ________ violence increases to such a degree that parents don’t allow them to go online.
31. —How much do you know about the 3D film technology? —A little. Not until ________ the hot movie Avatar ________ some about it.
30. In some countries, treatments for A(H1N1) flu were neither ________ nor effective, and many patients died because of infection.
29.For English teachers ________ a more effective role in teaching, they must make every effort to raise students’ cross-cultural awareness.