The teacher took ____ the lesson where she stopped and finally she set_____ a few minutes to let us discuss it.
9.With the world changing fast, we have something new with all by ourselves every day.
10. Professor Williams keeps telling his students that the future to the well-educated.
The main cause of HIV / AIDS infection in China is drug abuse, ______ is very serious in Yunnan.
11.We should consider the students’ request the school library provide more books on popular science.
12. ---Hi, Tom. Any idea where Jane is? ---She in the classroom. I saw her there just now.