As is known to us all, _____ tiger is in _____ danger of becoming extinct.
The retired man donated most of his savings to the school damaged by the earthquake in Yushu, the students to return to their classrooms.
He had a wonderful childhood, with his mother to all corners of the world.
many times, he finally understood it.
They use computers to keep the traffic smoothly.
at my classmates’ faces, I read the same excitement in their eyes.