All the universities have duty to ______ their students ______ of the quick development of the scientific world.
When the day broke, they found themselves.
Computers and mobile phones, though they are indeed making our lifeand more,have reduced the need for face-to-face communications. ( 2010 .江西)
Alexander tried to get his workin the medical circles. 2010 .辽宁)
Listen! Do you hear someonefor help? (2010 .湖南)
Lucy has a great sense of humour and always keeps her colleagues withher stories. (2010上海)