A recent survey shows that the number of children who from the countryside with their parents ________nearly 320,000 in Beijing.
Schools in the cities are well equipped those in the countryside are poor.
I received a letter,poor spelling made me think it was written by a child.
The new online library makespossible for students to choose books by smart phone off campus.
We were delayed at the airport.Otherwise,wehere by lunch.
According to the latest study,most traffic accidentsbe prevented if drivers are careful enough.