Social practice is an opportunity for students to gain a better understanding of_____ society operates.
. The teaching building is _________ by many trees, some ______ over 30 metres.
. They ________ to finish the project before Sunday, but they didn’t make it because of the heavy snow.
. She was educated at Beijing University, _____she went on to have her advanced study abroad.
. _____ you have got a chance, you might as well make full use of it.
. ---__________ that he managed to get the information? ---Oh, a friend of his helped him.