_______environmental damage is done, it takes many years for the ecosystem to recover.
He was educated at the local high school,he went on to Beijing University.
—“Could we put off the meeting?”she asked. —“_______,”he answered politely.“This is the only day everyone is available.”
—My room gets very cold at night. —_______.
He is very popular among his students as he always tries to make them_______in his lectures.
With April 18's railway speedup,highway and air transport will have to compete withservice for passengers.