—It’s reported that Nanjing Metro Line 3 was in service __________ April 1,2015.
—What _________ exciting news! I believe the public transport system of Nanjing will be much better.
A.on; / | B.on ; an | C.in; an | D.in; / |
—It’s reported that Nanjing Metro Line 3 was in service __________ April 1,2015.
—What _________ exciting news! I believe the public transport system of Nanjing will be much better.
A.on; / | B.on ; an | C.in; an | D.in; / |